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– Founder of AspiringMD

Learn how to become a surgical oncologist, including college, medical school, general surgery residency, fellowship training, board certification, and the complete timeline.

Becoming a surgical oncologist through the traditional pathway generally requires four years of college, four years of medical school, five years of general surgery residency, and two additional years of complex general surgical oncology fellowship training. Altogether, the path usually takes approximately 15 years after graduating from high school, although research years, gap years, additional degrees, or personal leave may extend the timeline.

Surgical oncologists care for patients with cancer when surgery may play a role in diagnosis, staging, treatment, symptom relief, or long-term disease control. They perform complex operations, but their work is not limited to removing tumors. They also help patients understand whether surgery is appropriate, decide how an operation should fit with chemotherapy, immunotherapy, radiation, or another treatment, and continue caring for patients through recovery and follow-up.

This is one of the parts of surgical oncology that can be easy to miss when you are first exploring the field. The operation may be the most visible part of the job, but becoming a strong surgical oncologist also requires understanding cancer biology, interpreting staging studies, collaborating with several different specialists, discussing uncertain outcomes, and recognizing when an operation would not provide enough benefit to justify its risks.

The traditional pathway begins with general surgery residency, so I recommend starting with my complete guide on how to become a general surgeon. That pillar guide explains the college, medical school, residency, licensing, and board certification steps that come before any post-residency surgical fellowship.

The Path to Becoming a Surgical Oncologist at a Glance

The traditional path generally includes:

Four years of college
Four years of medical school
Five years of general surgery residency
Two years of complex general surgical oncology fellowship
Medical licensure
General surgery board certification
Optional complex general surgical oncology board certification

The American Board of Surgery requires a minimum of five years of progressive general surgery residency education for its standard certification pathway. Complex general surgical oncology certification then requires at least two years, or 96 weeks, of progressive fellowship education in an eligible accredited program.

For someone who moves directly through each stage, this creates a training timeline of approximately 15 years after high school. Someone graduating from high school at 18 might therefore complete fellowship at around 33 years old.

That number can look intimidating from the beginning of college, but you do not experience all 15 years as the same kind of student. Your responsibilities and independence grow throughout medical school, residency, and fellowship, and residency and fellowship are paid physician training positions.

You also do not need to know as a premed that surgical oncology will definitely become your career. Your first decision is whether medicine fits you. Later, you can decide whether surgery fits, and only after gaining meaningful surgical and oncology exposure do you need to determine whether fellowship is the right next step.

What Is a Surgical Oncologist?

A surgical oncologist is a surgeon with advanced expertise in treating cancer through surgery and coordinating surgical treatment with the other parts of cancer care.

The formal name of the board-certified subspecialty discussed in this article is complex general surgical oncology, commonly abbreviated CGSO. The American Board of Surgery defines the field around the diagnosis, multidisciplinary treatment, rehabilitation, and surgical care of patients with cancer, particularly those with complex presentations, uncommon tumors, or operations requiring advanced oncologic expertise.

The words in that formal title each have a purpose.

Complex reflects the advanced clinical judgment, technical ability, research knowledge, and multidisciplinary skills required to care for patients with complicated or unusual cancers.

General surgical distinguishes these surgeons from cancer specialists who enter through another residency, such as gynecologic oncologists, thoracic surgeons, urologic oncologists, orthopedic oncologists, neurosurgeons, or head and neck surgeons.

Oncology reflects that these surgeons are treating cancer as a disease rather than viewing the operation as an isolated procedure.

In everyday conversation, people often use “surgical oncologist” more broadly. A breast surgeon, colorectal surgeon, thoracic surgeon, endocrine surgeon, or other specialist may devote most of a practice to cancer without completing a complex general surgical oncology fellowship.

That does not make the title incorrect, but it means you should look carefully at the physician’s actual residency, fellowship, board certification, and clinical focus when trying to understand the training pathway.

What Does a Surgical Oncologist Do?

A surgical oncologist evaluates patients with known or suspected cancer and determines whether surgery should be part of their care.

Depending on the patient and disease, the surgeon may:

Perform a biopsy to establish a diagnosis
Remove a primary tumor
Remove nearby lymph nodes
Perform procedures to determine the cancer’s stage
Remove cancer that has spread to another location
Operate after chemotherapy, immunotherapy, or radiation
Perform surgery before additional treatment
Treat a recurrent cancer
Relieve symptoms caused by a tumor
Place certain treatment-related devices
Manage complications from cancer or its treatment
Follow patients after surgery
Participate in cancer research and clinical trials

The surgeon’s role often begins before the patient enters the operating room.

A patient may arrive with imaging that suggests a tumor, but the care team still needs to determine what type of cancer is present, whether it has spread, whether surgery is technically possible, and whether operating now is the best approach.

For some cancers, surgery may come first. For others, chemotherapy, radiation, immunotherapy, or another treatment may shrink the tumor or address cancer cells elsewhere in the body before an operation is considered.

A good surgical oncologist therefore needs to understand much more than the anatomy of removing a mass. The physician must understand cancer biology, staging, systemic treatments, radiation therapy, expected disease behavior, and how the operation may affect the patient’s function and quality of life.

What Types of Cancer Do Surgical Oncologists Treat?

Complex general surgical oncology fellowships provide broad exposure to multiple areas of cancer care rather than focusing on only one organ.

Training programs include experience across areas such as:

Breast cancer
Gastrointestinal cancers
Liver, pancreas, and biliary cancers
Endocrine tumors
Melanoma
Soft-tissue sarcoma
Certain head and neck cancers
Complex or recurrent tumors
Rare or unusual cancers

Current ACGME requirements call for fellowship programs to provide expertise across breast oncology, hepatobiliary and pancreatic surgery, non-hepatobiliary gastrointestinal oncology, endocrine surgery, melanoma and soft-tissue tumors, medical oncology, interventional radiology, and radiation oncology. Fellows also receive operative exposure involving breast, endocrine, gastrointestinal, gynecologic, head and neck, melanoma, and sarcoma conditions.

The exact mix varies among programs and eventual careers.

One surgical oncologist may build a practice centered on melanoma and sarcoma, while another may focus on stomach, pancreas, liver, or other gastrointestinal cancers. Someone at a major cancer center may develop a highly specialized practice involving one group of complex tumors, while a surgeon at a regional hospital may maintain a broader cancer surgery practice.

This is also why the fellowship is called complex general surgical oncology rather than naming one organ. The training is designed to create broad oncologic judgment that can later support a more focused clinical career.

Is Every Surgeon Who Operates on Cancer a Surgical Oncologist?

Many surgeons treat cancer without completing a complex general surgical oncology fellowship.

General surgery residency already includes experience evaluating and treating several cancers. General surgeons may operate on breast, skin, soft-tissue, gastrointestinal, and endocrine cancers depending on their training, hospital privileges, community needs, and practice setting.

Other surgeons enter cancer-focused careers through different pathways, including:

Colorectal surgery
Breast surgical oncology
Endocrine surgery
Hepatopancreatobiliary surgery
Thoracic surgery
Gynecologic oncology
Urologic oncology
Orthopedic oncology
Head and neck surgery
Neurosurgical oncology

A colorectal surgeon who treats colon and rectal cancer is practicing cancer surgery, but the physician’s fellowship is colon and rectal surgery rather than complex general surgical oncology. Similarly, a gynecologic oncologist completes obstetrics and gynecology residency before fellowship instead of general surgery residency.

For this reason, “cancer surgeon” is a broader description than the formal CGSO certification pathway covered in this guide.

Surgical Oncology Is Multidisciplinary Care

Cancer care rarely belongs to only one physician.

A surgical oncologist commonly works with:

Medical oncologists
Radiation oncologists
Pathologists
Radiologists
Interventional radiologists
Gastroenterologists
Genetic counselors
Palliative care physicians
Oncology nurses
Dietitians
Rehabilitation professionals
Social workers
Other surgical specialists

Many treatment decisions are discussed in multidisciplinary conferences commonly called tumor boards. During these meetings, specialists review imaging, pathology, staging information, treatment options, and the sequence in which different therapies should occur.

The American Board of Surgery places multidisciplinary cancer treatment at the center of complex general surgical oncology, while ACGME requirements include regular multidisciplinary conferences, knowledge of chemotherapy, immunotherapy, radiation, interventional radiology, endocrine therapy, rehabilitation, and supportive care.

This collaboration matters because surgery is sometimes only one part of a much longer treatment plan.

The surgeon may remove the visible tumor, but another treatment may be needed to address microscopic disease or cancer elsewhere in the body. In other situations, the team may decide that surgery is unlikely to help and that another approach would better align with the patient’s goals.

Learning to participate thoughtfully in those decisions is one of the major differences between training in oncologic surgery and learning only how to perform a technically difficult operation.

Step 1: Complete College and the Premed Requirements

The path begins by earning a bachelor’s degree and completing the prerequisite courses required by the medical schools where you plan to apply.

You do not need to choose a particular undergraduate major. Premed students may major in biology, chemistry, neuroscience, engineering, psychology, public health, business, history, or nearly any other subject as long as they complete the required science courses.

During college, focus on developing the broader foundation needed to become a physician.

That generally includes meaningful involvement in areas such as:

Clinical experience
Physician shadowing
Community service
Research
Leadership
Teaching or mentoring
Activities connected to your interests and community

You do not need to build an application made entirely of oncology experiences.

Volunteering with patients with cancer, shadowing an oncologist, or participating in cancer research may help you explore the field, but medical schools are not expecting a college student to have already committed to a surgical subspecialty that requires years of later training.

The most useful experiences are often the ones that help you understand patients as people rather than diagnoses. Working in a clinic, hospital, hospice program, nursing facility, rehabilitation center, or community organization can teach you about uncertainty, communication, family dynamics, and the way illness affects daily life.

Those lessons are deeply relevant to surgical oncology, even when your role has nothing to do with an operating room.

You can use my premed guides and application resources to organize your coursework, clinical experience, service, MCAT preparation, and eventual medical school application.

Step 2: Take the MCAT and Apply to Medical School

Most students take the Medical College Admission Test, or MCAT, before applying to medical school.

Medical schools review your GPA and MCAT score alongside your clinical experiences, service, research, leadership, letters of recommendation, personal statement, secondary essays, and interview performance.

You may discuss an interest in oncology or surgery when it grows naturally from experiences that have mattered to you. However, you do not need to promise an admissions committee that you will definitely become a surgical oncologist.

As a premed, you have probably seen only a small part of cancer care. You may not yet understand the differences between medical oncology, radiation oncology, surgical oncology, pathology, radiology, palliative medicine, and the many organ-specific specialties involved in treating cancer.

Medical school will give you more opportunities to explore those differences.

At this stage, concentrate on explaining why you want to become a physician and what you have learned from the people and communities you have served. Your final specialty choice can remain open.

You can find study planners, application trackers, checklists, and other downloads through my free premed and MCAT resources.

Step 3: Complete Medical School

Future surgical oncologists attend medical school and earn either a Doctor of Medicine, or M.D., degree or a Doctor of Osteopathic Medicine, or D.O., degree.

Medical school traditionally lasts four years.

During the earlier portion, students learn subjects such as:

Anatomy
Physiology
Pathology
Pharmacology
Immunology
Microbiology
Genetics
Clinical reasoning
Organ-system medicine

These subjects form the foundation for understanding both surgery and cancer.

Anatomy helps you understand what can be safely removed and how an operation may affect surrounding structures. Pathology and genetics help explain what kind of cancer is present and how it may behave. Pharmacology and immunology become increasingly important as cancer treatment expands beyond traditional chemotherapy.

During the clinical portion of medical school, students rotate through major specialties such as internal medicine, surgery, pediatrics, family medicine, psychiatry, obstetrics and gynecology, and neurology.

The general surgery clerkship is often when students first see how surgeons care for patients before, during, and after cancer operations.

You may observe a surgeon:

Review imaging before a procedure
Explain an operation to a patient
Work with pathology during surgery
Remove a tumor and assess nearby structures
Manage postoperative pain and nutrition
Respond to a complication
Discuss results at a tumor board
Follow the patient in clinic

The operation may initially be the most memorable part of the experience, but try to notice the conversations surrounding it.

A surgical oncologist may need to explain that an operation will be extensive, that it may change how a patient eats or functions, or that surgery is no longer likely to provide the hoped-for benefit. These conversations require honesty, empathy, patience, and the ability to help patients make decisions during an overwhelming time.

Step 4: Explore Surgery and Cancer Care During Medical School

If surgical oncology continues to interest you, try to gain exposure to both surgery and oncology rather than focusing only on one side of the field.

Potential experiences include:

General surgery rotations
Surgical oncology electives
Medical oncology electives
Radiation oncology electives
Pathology or radiology electives
Cancer research
Tumor board attendance
Oncology clinics
Palliative care experiences
Cancer-related student organizations
Mentorship with surgeons or oncologists

An elective in surgical oncology can help you understand the operative work, but spending time with medical or radiation oncologists may teach you how surgery fits into the entire treatment sequence.

A pathology experience may help you understand how the diagnosis is established, while radiology may show you how surgeons evaluate whether a tumor can be removed safely.

You might also discover that you love caring for patients with cancer but prefer a nonsurgical role, or that you enjoy surgery but feel more drawn toward trauma, emergency care, or another patient population.

That is exactly why medical school includes broad clinical exposure. Changing direction after learning more is not failure. It means the process is helping you make a better-informed choice.

Step 5: Decide Whether General Surgery Is the Right Residency

The traditional surgical oncology pathway requires completion of general surgery residency, so you should first decide whether you would be happy training and practicing as a general surgeon.

General surgery residency is not five years of cancer surgery.

You will care for patients with:

Appendicitis
Gallbladder disease
Hernias
Bowel obstruction
Traumatic injuries
Surgical infections
Breast disease
Endocrine conditions
Gastrointestinal diseases
Emergency surgical problems
Benign and malignant tumors
Postoperative complications

This broad experience is essential because cancer patients can develop the same medical and surgical problems as anyone else, often in the setting of more complex treatment, altered anatomy, malnutrition, immunosuppression, or prior operations.

Before applying, consider whether you enjoy:

Working in the operating room
Managing patients before and after surgery
Learning technical procedures
Using anatomy to solve clinical problems
Caring for hospitalized patients
Following patients in clinic
Working within multidisciplinary teams
Taking responsibility for complications
Receiving and applying detailed feedback
Making difficult decisions when no option is perfect

An interest in cancer is not enough by itself if you do not enjoy the broader work of surgery.

My guide on how to become a general surgeon provides a much deeper look at the foundational residency pathway.

Step 6: Apply to General Surgery Residency

Medical students pursuing surgical oncology generally apply to categorical general surgery residency programs through ERAS and participate in the residency match.

General surgery programs may consider:

Clinical performance
Surgery clerkship evaluations
Letters of recommendation
Licensing examination results
Research and scholarly activity
Leadership and service
Professionalism
Personal statement
Interview performance
Understanding of surgical training

Surgical oncology is academically oriented, and research can become especially important for students and residents interested in major cancer centers or academic careers.

However, this does not mean every medical student needs several years of laboratory research or a long publication list.

Meaningful work in surgical outcomes, cancer biology, clinical trials, disparities, quality improvement, education, epidemiology, or another relevant area can help you learn how evidence shapes patient care. What you understand and contribute is generally more meaningful than simply attaching your name to as many projects as possible.

When comparing general surgery residency programs, students interested in surgical oncology may want to consider:

Strength of surgical oncology rotations
Cancer center exposure
Faculty mentorship
Operative experience
Availability of research years
Clinical and laboratory research opportunities
Fellowship placement
Experience with complex gastrointestinal and hepatobiliary surgery
Melanoma and sarcoma exposure
Resident culture and support

A strong overall general surgery education should remain the priority. Fellowship programs expect applicants to arrive with the judgment, technical foundation, and professionalism of a well-trained general surgeon.

Step 7: Complete Five Years of General Surgery Residency

The standard general surgery pathway includes at least five years, or 60 months, of progressive residency education in an accredited program. Residents must gain increasing responsibility, substantial clinical and operative experience, and senior-level responsibility before completing training.

During residency, future surgical oncologists learn to:

Evaluate patients with surgical disease
Interpret imaging and pathology
Prepare patients for operations
Perform increasingly complex procedures
Manage postoperative care
Recognize and treat complications
Care for critically ill patients
Coordinate multidisciplinary treatment
Communicate with patients and families
Lead surgical teams
Teach junior residents and students
Make decisions under uncertainty

Cancer care is woven throughout general surgery training.

Residents may care for patients with breast cancer, colon cancer, melanoma, endocrine tumors, stomach cancer, pancreatic cancer, liver tumors, soft-tissue sarcoma, or other malignancies depending on the institution.

The exact exposure varies, which is one reason mentorship and elective flexibility can be helpful for residents who are considering fellowship.

General surgery residency also teaches future surgical oncologists how patients recover from major operations, how complications develop, and how factors such as nutrition, frailty, infection, and other medical conditions affect surgical outcomes.

These lessons become especially important in oncology because the most technically ambitious operation is not automatically the best operation for every patient.

Do Surgical Oncology Applicants Complete Research Years?

Some general surgery residents complete one or more dedicated research years before applying to complex general surgical oncology fellowship.

Research years are not universally required, and many factors influence whether they make sense, including the residency structure, the applicant’s career goals, previous research experience, and the types of fellowship programs being considered.

Residents interested in academic surgical oncology may use dedicated time to study:

Cancer biology
Clinical outcomes
Health disparities
Clinical trials
Quality improvement
Surgical education
Population health
Tumor immunology
Translational science
Healthcare delivery

Research can help a future surgeon understand how new treatments are evaluated and how evidence changes clinical practice.

It may also lead to mentorship, presentations, publications, and a clearer understanding of whether an academic career feels personally meaningful.

However, taking research years should not be viewed only as a way to accumulate application items. Dedicated research can extend an already long training pathway, so it is worth pursuing thoughtfully and with clear goals.

Step 8: Apply to Complex General Surgical Oncology Fellowship

General surgery residents usually apply to complex general surgical oncology fellowship near the later part of residency.

The Society of Surgical Oncology coordinates information about the fellowship process, and applicants use ERAS for participating fellowship applications. U.S. programs listed by the Society of Surgical Oncology are accredited by the ACGME and must follow the applicable CGSO program requirements.

Fellowship programs may evaluate:

General surgery residency performance
Operative experience
Letters from surgical faculty
Research and scholarly work
Commitment to cancer care
Leadership and teaching
Professionalism
Career goals
Interview performance

Strong mentorship can be particularly valuable during this stage.

A surgical oncologist who knows your clinical work and long-term goals can help you identify programs with the right balance of operative experience, research, mentorship, and cancer-specific exposure.

Applicants should also think carefully about the type of career they hope to build.

A resident interested in melanoma and sarcoma may evaluate programs differently from someone drawn toward pancreatic, liver, or gastrointestinal cancer surgery. Although fellowship is broadly structured, institutions have different clinical strengths and research environments.

Step 9: Complete a Two-Year Complex General Surgical Oncology Fellowship

Complex general surgical oncology fellowship lasts a minimum of two years.

The American Board of Surgery requires at least 96 weeks of progressive fellowship education, with 48 weeks of full-time clinical activity in each training year. Fellows must receive increasing responsibility and develop the skills needed for independent practice.

During fellowship, surgeons deepen their knowledge of:

Cancer biology
Tumor staging
Surgical decision-making
Multidisciplinary treatment
Chemotherapy
Immunotherapy
Radiation therapy
Endocrine therapy
Interventional radiology
Cancer genetics
Rehabilitation
Palliative treatment
Clinical research
Complex oncologic operations

Fellows continue operating, but the training is not simply two additional years of technical surgery.

They must learn how to select appropriate patients for surgery, understand the expected behavior of different cancers, coordinate treatment with nonsurgical therapies, and care for people with rare, recurrent, or advanced disease.

Current ACGME requirements include a minimum of 240 cancer-related operative procedures, along with multidisciplinary cancer conferences, outpatient follow-up, teaching responsibilities, and experience caring for patients throughout complex cancer treatment.

What Operations Do Surgical Oncology Fellows Learn?

The exact operations vary by program, but fellowship may provide experience with procedures involving:

Stomach
Small intestine
Colon
Liver
Pancreas
Bile ducts
Breast
Endocrine organs
Skin and soft tissue
Lymph nodes
Melanoma
Sarcoma
Metastatic disease
Recurrent tumors

Fellows may also learn advanced minimally invasive techniques, staging procedures, endoscopy, regional cancer treatments, and palliative operations.

An operation is considered oncologically appropriate not simply because the tumor was removed. The surgeon must consider whether the correct margins, lymph nodes, surrounding structures, and treatment sequence were addressed while preserving as much function and quality of life as reasonably possible.

Sometimes that requires a very extensive procedure. In another patient, the most thoughtful decision may be a smaller operation, a delay while another treatment is given, or no operation at all.

That judgment is one of the major skills fellowship is designed to develop.

What Do Surgical Oncology Fellows Learn Outside the Operating Room?

A substantial part of fellowship occurs outside the operating room.

Fellows may participate in:

Tumor boards
Medical oncology clinics
Radiation oncology experiences
Pathology conferences
Radiology review
Genetic counseling
Palliative care
Rehabilitation planning
Clinical research
Cancer registries
Long-term outpatient follow-up
Patient education

ACGME requirements specifically emphasize knowledge of nonsurgical cancer therapies, supportive care, pain management, rehabilitation, multidisciplinary conferences, outpatient follow-up, research methodology, and communication across the cancer-care continuum.

This broader training helps the surgeon understand what happens before and after an operation.

A surgical oncologist should be able to explain why chemotherapy may come first, how radiation could affect future surgery, what immunotherapy complications might matter, and how an operation fits into the patient’s overall prognosis and goals.

Step 10: Obtain Medical Licensure and Board Certification

Surgical oncologists must hold the appropriate medical license for the state where they practice and satisfy their hospital’s credentialing requirements.

Board certification is a separate process.

For certification in complex general surgical oncology through the American Board of Surgery, physicians must first be certified in general surgery and complete an eligible accredited CGSO fellowship.

The CGSO certification process includes two examinations:

The Complex General Surgical Oncology Qualifying Examination
The Complex General Surgical Oncology Certifying Examination

The qualifying examination evaluates knowledge through a written multiple-choice format, while the certifying examination evaluates clinical judgment and decision-making through an oral examination. Successful completion of both is required for CGSO certification.

A full and unrestricted medical license is also required at the applicable stage of the certification process.

Board certification is not the same as licensure. Medical licensure provides legal authority to practice medicine, while specialty certification demonstrates that the physician has completed the relevant training and examination standards.

Is There a Joint General Surgery and Surgical Oncology Pathway?

The traditional route remains five years of general surgery followed by two years of CGSO fellowship.

The ACGME has also described a joint surgery-complex general surgical oncology pathway in which participating institutions can integrate focused CGSO experience into the later years of general surgery residency.

This pathway does not eliminate the five years of general surgery or reduce the accredited CGSO fellowship below 24 months. Instead, certain focused experiences may be coordinated across the seven-year training structure at the same sponsoring institution. Candidates must still satisfy the full requirements for both general surgery and CGSO certification eligibility.

Because this is a specialized institutional pathway rather than the standard option available everywhere, most students should still understand the training sequence as:

Five years of general surgery residency followed by two years of surgical oncology fellowship.

How Long Does It Take to Become a Surgical Oncologist?

The traditional timeline includes:

Four years of college
Four years of medical school
Five years of general surgery residency
Two years of complex general surgical oncology fellowship

That equals approximately 15 years after high school.

The timeline may be longer if you:

Take gap years before medical school
Complete an M.D./Ph.D. or another dual degree
Pursue research years during residency
Take parental or medical leave
Change specialties
Complete additional focused training
Follow another academic or personal timeline

Some future surgical oncologists spend six or seven calendar years in general surgery residency because of dedicated research time before completing the two-year fellowship.

There is no required age by which you must finish.

You should consider the length of training honestly, especially when thinking about finances, family, location, and personal priorities, but you do not need to make every decision at the beginning of college.

Focus on the stage directly in front of you and allow your experiences to shape the next step.

Can a General Surgeon Treat Cancer Without Fellowship?

Yes. General surgeons receive training in cancer surgery during residency and may treat several types of cancer without completing a complex general surgical oncology fellowship.

The scope of practice depends on:

Residency experience
Additional training
Hospital privileges
Practice setting
Community needs
Mentorship
Case complexity
Available multidisciplinary resources

A community general surgeon may routinely operate on breast, colon, skin, soft-tissue, or endocrine cancers.

Complex general surgical oncology fellowship provides additional expertise in rare tumors, complicated presentations, advanced operations, multidisciplinary treatment, research, and the care of patients who may require several forms of therapy.

Fellowship is therefore not required for every surgeon who performs a cancer operation, but it is the formal advanced pathway for surgeons seeking CGSO subspecialty training and certification.

Where Do Surgical Oncologists Work?

Surgical oncologists commonly work in:

Academic medical centers
National or regional cancer centers
University hospitals
Community cancer programs
Large healthcare systems
Veterans Affairs hospitals
Research institutions
Private or group surgical practices

Academic surgical oncologists may divide their time among:

Operating
Outpatient clinics
Tumor boards
Research
Teaching
Clinical trials
Administrative leadership

A community surgical oncologist may have a more clinically focused role and serve as an important connection between patients and regional oncology resources.

Some practices are broad, while others are highly specialized. A surgeon at a major referral center may spend most of a career treating only pancreatic cancer, sarcoma, melanoma, or another narrow group of tumors.

What Is a Surgical Oncologist’s Schedule Like?

The schedule depends on the institution, cancer focus, call structure, and balance among clinical, research, and teaching responsibilities.

A surgical oncologist may spend time in:

The operating room
Outpatient clinic
Inpatient rounds
Tumor board
Research meetings
Teaching conferences
Administrative meetings

Many cancer operations are scheduled rather than performed as middle-of-the-night emergencies, which may create a different call structure from trauma or acute care surgery.

However, the work is not necessarily predictable or easy.

Operations can be long and technically demanding. Patients may develop urgent postoperative complications, and surgeons may care for people with advanced illness, recurrent disease, or uncertain outcomes.

Academic surgeons may also have pressure related to research, publications, grants, teaching, and program leadership.

When exploring the field, ask physicians about:

Typical operating days
Clinic volume
Call frequency
Emergency responsibilities
Length of operations
Research expectations
Tumor board commitments
Administrative duties
How schedules change later in a career

The job structure may influence work-life balance just as much as the specialty name.

How Is a Surgical Oncologist Different From a Medical Oncologist?

A surgical oncologist is a surgeon who treats cancer through operations and coordinates surgical care with other treatments.

A medical oncologist generally completes internal medicine residency followed by hematology and oncology fellowship. Medical oncologists treat cancer using systemic therapies such as:

Chemotherapy
Immunotherapy
Targeted therapy
Hormonal therapy
Other anticancer medications

The two physicians frequently care for the same patient.

For example, a medical oncologist may provide chemotherapy before surgery, the surgical oncologist may remove the remaining tumor, and the medical oncologist may then recommend additional treatment afterward.

Neither physician is replacing the other. Their expertise addresses different parts of the patient’s care.

How Is a Surgical Oncologist Different From a Radiation Oncologist?

A radiation oncologist treats cancer using radiation therapy and completes a separate radiation oncology residency.

The radiation oncologist determines:

Whether radiation may help
Which area should be treated
What type and dose of radiation should be used
How treatment should be delivered safely
How radiation fits with surgery and medication

Surgical and radiation oncologists often coordinate treatment carefully because the order of therapy can affect healing, tumor removal, complications, and long-term outcomes.

How Is Surgical Oncology Different From Trauma or Acute Care Surgery?

All of these careers may begin with general surgery residency, but their patient populations and daily work can be very different.

Surgical oncology focuses on cancer diagnosis, staging, multidisciplinary treatment, complex tumor surgery, and long-term follow-up.

Trauma surgery focuses on patients who have experienced serious physical injuries.

Acute care surgery combines trauma, emergency general surgery, and surgical critical care.

Surgical critical care focuses on critically ill surgical patients, often in an intensive care unit.

A medical student may enjoy the operating room in each of these fields but feel very differently about the patient relationships, pace, schedule, and clinical problems.

That is why spending time with several surgical teams can be more useful than deciding that you like “surgery” as one broad category.

How Can Premed Students Explore Surgical Oncology?

Premed students may explore the field through:

Shadowing a general or surgical oncologist
Volunteering in a cancer center
Participating in cancer research
Working in a hospital or oncology clinic
Volunteering with cancer-support organizations
Learning about hospice or palliative care
Speaking with patients and survivors
Observing tumor boards when permitted
Exploring cancer prevention and public health

Try to learn about the entire patient journey rather than focusing only on operations.

A patient may spend weeks undergoing tests before seeing a surgeon, months receiving treatment, and years attending follow-up visits. Cancer can affect work, finances, relationships, nutrition, mental health, mobility, and family responsibilities.

Understanding those broader effects will help you appreciate what cancer care asks of both patients and physicians.

You also do not need cancer-specific experience to become a strong medical school applicant. Meaningful clinical service in another setting can still teach you the values that later matter in surgical oncology.

How Can Medical Students Prepare for Surgical Oncology?

Medical students interested in surgical oncology should begin by becoming strong, dependable learners and building a broad foundation in surgery and cancer medicine.

Helpful steps may include:

Performing well during the surgery clerkship
Finding mentors in general surgery and oncology
Completing a surgical oncology elective
Participating in meaningful research
Attending tumor boards
Exploring medical and radiation oncology
Joining a surgery or oncology interest group
Developing clear patient-presentation skills
Seeking feedback from residents and faculty
Completing surgical sub-internships
Learning about residency programs with strong cancer exposure

You are not expected to enter residency already knowing how to perform cancer operations or independently design a treatment plan.

Technical ability and advanced judgment develop through supervised training.

As a medical student, reliability, curiosity, compassion, teamwork, preparation, and willingness to improve are more important than trying to appear like a finished surgeon.

What Qualities May Help Someone Become a Good Surgical Oncologist?

There is no single personality required for surgical oncology.

Helpful qualities may include:

Enjoying anatomy and technical procedures
Valuing long-term patient relationships
Communicating difficult information clearly
Working well within multidisciplinary teams
Tolerating uncertainty
Thinking carefully about risks and benefits
Remaining patient with complex decisions
Learning continuously as treatments change
Balancing confidence with humility
Supporting patients through serious illness
Accepting responsibility for complications
Maintaining empathy during emotionally difficult conversations

Decisiveness matters in surgery, but surgical oncology often rewards patience.

There may be several reasonable treatment options, and the right decision can depend on tumor biology, previous treatment, overall health, expected quality of life, and what the patient values most.

A technically possible operation is not always the most appropriate operation.

Good surgical oncologists are willing to step back, listen, collaborate, and recommend against surgery when another approach is more likely to help.

Is Becoming a Surgical Oncologist Worth It?

Surgical oncology can be a deeply meaningful career for someone who enjoys surgery, cancer biology, complex decision-making, teamwork, research, and building relationships with patients facing serious illness.

The field allows surgeons to perform technically challenging operations while remaining involved in the broader treatment plan. Surgical oncologists may follow patients from diagnosis through surgery, additional treatment, recovery, surveillance, and sometimes recurrence.

That continuity can be rewarding, but it can also be emotionally difficult.

Not every operation cures the cancer. Some patients develop recurrent disease despite appropriate treatment, and others may become too ill for the operation everyone initially hoped would be possible.

The specialty requires physicians to celebrate good outcomes while also remaining present during disappointment, uncertainty, and loss.

The training pathway is long, and academic careers may include additional expectations related to research, teaching, and leadership. However, students who find meaning in the combination of surgery, science, and long-term cancer care may feel that the work justifies those challenges.

You do not have to decide now.

Begin by exploring medicine, then general surgery, and eventually the different fellowships available after residency. Pay attention not only to which operations seem interesting, but also to which patients you want to care for and which conversations you are willing to have throughout a career.

Frequently Asked Questions About Becoming a Surgical Oncologist

How many years does it take to become a surgical oncologist?

The traditional pathway takes approximately 15 years after high school, including four years of college, four years of medical school, five years of general surgery residency, and two years of complex general surgical oncology fellowship.

Research years, gap years, dual-degree programs, leave, or other circumstances may extend the timeline.

What residency do surgical oncologists complete?

Physicians pursuing complex general surgical oncology traditionally complete a categorical general surgery residency before entering fellowship.

How long is surgical oncology fellowship?

Complex general surgical oncology fellowship lasts at least two years, or 96 weeks. The American Board of Surgery requires 48 weeks of full-time clinical activity during each fellowship year.

What is complex general surgical oncology?

Complex general surgical oncology is the formal name of the American Board of Surgery subspecialty focused on advanced cancer surgery, multidisciplinary treatment, rare or complex tumors, research, and the broader care of patients with cancer.

Is surgical oncology fellowship required to operate on cancer?

No. General surgeons and other surgical specialists may treat cancer without completing a CGSO fellowship.

The fellowship provides additional expertise in complex tumors, advanced operations, multidisciplinary care, rare cancers, research, and oncologic decision-making.

Are surgical oncologists board certified?

Eligible surgeons may become board certified in complex general surgical oncology through the American Board of Surgery after obtaining general surgery certification, completing the required fellowship, and passing the CGSO Qualifying and Certifying Examinations.

How many operations do surgical oncology fellows perform?

Current ACGME requirements include a minimum of 240 cancer-related operative procedures during fellowship, although fellows may complete more depending on the program and clinical volume.

Do surgical oncologists give chemotherapy?

Surgical oncologists do not generally serve as the primary physicians prescribing systemic chemotherapy, immunotherapy, or targeted therapy. Those treatments are usually managed by medical oncologists.

However, surgical oncologists need to understand those therapies and coordinate the timing of surgery with the medical oncology team.

Do surgical oncologists provide radiation?

Radiation therapy is planned and delivered by radiation oncologists.

Surgical oncologists work closely with radiation oncologists when radiation may be needed before or after an operation.

What cancers do surgical oncologists treat?

Complex general surgical oncologists may treat cancers involving the gastrointestinal system, liver, pancreas, bile ducts, breast, endocrine organs, skin, soft tissue, melanoma, sarcoma, and other complex or uncommon tumors.

The exact scope depends on the surgeon’s fellowship experience and eventual clinical focus.

Do surgical oncologists only perform operations?

No. They evaluate patients, interpret imaging and pathology, participate in tumor boards, coordinate treatment, provide postoperative care, follow patients in clinic, conduct research, teach trainees, and help patients decide whether surgery is appropriate.

Is surgical oncology competitive?

Complex general surgical oncology fellowship can be competitive, particularly at research-intensive cancer centers. Clinical performance, operative development, mentorship, letters of recommendation, research, and a well-considered commitment to cancer care may all influence fellowship applications.

Do I need research to become a surgical oncologist?

Research is not an absolute requirement for every stage, but it is common within surgical oncology and can be particularly valuable for physicians interested in academic cancer centers, clinical trials, or research-focused careers.

Can M.D. and D.O. physicians become surgical oncologists?

Yes. Both M.D. and D.O. physicians can complete accredited general surgery residency and complex general surgical oncology fellowship training if they satisfy the applicable program, licensing, and certification requirements.

What should I major in to become a surgical oncologist?

There is no required undergraduate major. You may choose nearly any subject as long as you complete the prerequisite courses required by the medical schools where you plan to apply.

Should premed students volunteer with patients with cancer?

Cancer-related volunteering can be meaningful, but it is not required. The experience should help you serve and understand patients rather than simply functioning as an application item.

Clinical and service experiences in other settings can also prepare you well for medical school.

Can surgical oncologists have a good work-life balance?

Work-life balance varies among institutions and practice structures. Many cancer operations are scheduled, but procedures can be long, complications may occur, and academic surgeons may have research, teaching, and leadership responsibilities in addition to clinical work.

The specific job often matters as much as the specialty title.

What should I read next?

Every pathway in this series begins with the broader foundation explained in my guide on how to become a general surgeon.

You can also compare surgical oncology with the emergency and critical care branches of general surgery through these guides: