Ovarian Cancer Surgery

Introduction

An ovarian cancer diagnosis brings many questions at once. How extensive will surgery be? Will chemotherapy come before or after? What will recovery feel like? If you are still of reproductive age, what does this mean for fertility? This article is written for women who have been diagnosed with ovarian cancer, or who are being investigated for a suspicious ovarian mass, and are now planning surgery as part of their treatment.

For most women with ovarian cancer, surgery is central to treatment. Major gynecologic oncology guidelines — including those from the National Comprehensive Cancer Network (NCCN), the European Society of Gynaecological Oncology (ESGO), and the European Society for Medical Oncology (ESMO) — describe surgery as one of the most important steps in the entire treatment journey. Surgery confirms the diagnosis, establishes how far the disease has spread, and removes as much visible cancer as possible. Chemotherapy and, in some cases, targeted medicines then treat the disease that surgery cannot reach.

This guide explains what ovarian cancer surgery involves, the different types of operations, who is a candidate for each, how to prepare, what recovery looks like, the risks, and what to expect in the months and years that follow.

What Is Ovarian Cancer Surgery?

Ovarian cancer surgery is the operation performed to diagnose, stage, and treat cancer that begins in the ovaries, fallopian tubes, or the lining of the abdomen called the peritoneum. (These cancers are grouped together because they behave similarly and are treated in the same way.)

The surgery has two linked goals:

• Staging — carefully looking at the abdominal cavity and taking tissue samples to determine exactly how far the cancer has spread. Accurate staging guides every decision that follows.
• Cytoreduction, also called debulking — removing as much visible tumour as possible. The aim is “complete cytoreduction,” meaning no visible cancer is left behind at the end of surgery. Studies consistently show that women who finish surgery with no visible residual disease have better outcomes than those with disease left behind.

Because ovarian cancer often spreads as small deposits across many surfaces inside the abdomen, the operation can range from the relatively contained — removing the ovaries, fallopian tubes, uterus, and the fatty apron of tissue called the omentum — to extensive surgery involving parts of the bowel, the diaphragm, the spleen, or the lining of the liver. The exact scope is judged by the surgeon during the operation, based on where the disease is found.

Gynecologic oncology guidelines emphasise that this surgery is most effective when performed by surgeons specifically trained in gynecologic oncology, in centres equipped for complex abdominal procedures and high-level post-operative care.

Why Is Ovarian Cancer Surgery Performed?

Surgery is part of treatment for almost every woman diagnosed with ovarian, fallopian tube, or primary peritoneal cancer. The specific reasons include:

• Confirming the diagnosis. Imaging and blood tests such as CA-125 can strongly suggest cancer, but a definitive diagnosis usually requires tissue from the tumour.
• Establishing the stage. The stage describes how far the cancer has spread. It is the single most important factor in deciding treatment and predicting outcome.
• Removing visible cancer. The less cancer remains after surgery, the more effectively chemotherapy can treat what is left.
• Relieving symptoms. In advanced disease, large tumours or fluid build-up in the abdomen can cause pain, bloating, bowel symptoms, or difficulty eating. Surgery can ease these.
• Treating a recurrence. In some women whose cancer comes back after a long disease-free interval, a second surgery (secondary cytoreduction) may be considered.

Who Is a Candidate?

Candidacy for ovarian cancer surgery, and the type of surgery offered, depends on several factors that a multidisciplinary tumour board typically reviews together.

Factors the team considers include:

• Stage and extent of disease. Imaging (CT, MRI, sometimes PET-CT) shows where the cancer has spread. In some cases, a diagnostic laparoscopy — a small keyhole operation — is performed first to assess whether complete tumour removal is realistic.
• Tumour type. Most ovarian cancers are epithelial. Less common types — germ cell tumours and sex cord-stromal tumours — are managed somewhat differently, often with more emphasis on preserving fertility because they tend to occur in younger women and respond well to chemotherapy.
• Overall health and surgical fitness. Heart, lung, kidney, and nutritional status all matter for an operation that can last several hours.
• CA-125 and other tumour markers. Baseline values help track response after surgery.
• Age and fertility wishes. In carefully selected early-stage cases in younger women, fertility-sparing surgery may be an option.
• Genetic factors. BRCA1, BRCA2, and other hereditary mutations influence treatment decisions, including the use of targeted maintenance therapy after surgery and chemotherapy.

Not every woman with ovarian cancer is offered immediate surgery. When imaging suggests that complete tumour removal would be too difficult or too risky as a first step — or when the patient is not fit enough for major surgery upfront — chemotherapy may be given first to shrink the disease, with surgery performed later. This is discussed in more detail below.

Alternatives and Decisions Before Surgery

Surgery is the foundation of treatment for most ovarian cancers, but the sequence and extent of treatment can vary. The main decision points are:

Surgery first, or chemotherapy first?

For early-stage disease and for advanced disease where the surgeon believes complete tumour removal is achievable upfront, primary surgery is generally preferred. For advanced disease where complete removal looks unlikely at the start, or where the patient’s general condition needs to improve first, guidelines support giving three to four cycles of chemotherapy first (neoadjuvant chemotherapy), then performing interval debulking surgery, then completing the remaining chemotherapy cycles afterwards. Studies have shown similar long-term outcomes between these two pathways when patient selection is appropriate, with fewer surgical complications in the neoadjuvant-first approach.

Open surgery, or minimally invasive surgery?

For most advanced ovarian cancers, open surgery through a vertical incision in the abdomen is necessary to safely access all the areas where cancer may be hiding. For early-stage disease confined to the ovary, or for some staging procedures, minimally invasive laparoscopic or robotic approaches may be possible. The decision is individual.

Preserving fertility, or not?

In carefully selected younger women with very early-stage disease — typically a tumour confined to one ovary, of a favourable type — fertility-sparing surgery may be offered. This is a complex conversation that involves balancing cancer safety against future reproductive goals.

Genetic testing

Guidelines now recommend that all women with epithelial ovarian cancer be offered genetic counselling and testing for BRCA1, BRCA2, and related mutations. The result affects both your own treatment (particularly whether maintenance therapy with PARP inhibitors is offered) and the screening offered to your close female relatives.

Surgical Approaches

The term “ovarian cancer surgery” covers several distinct operations that share principles but differ in scope and timing. Understanding which one is being recommended for you helps you participate more fully in the conversation.

Staging Surgery

When cancer appears to be confined to one or both ovaries on imaging, a comprehensive staging operation is performed to confirm this. Even in cancers that look localised, microscopic spread can exist in places that imaging cannot see — the omentum, the lining of the abdomen, lymph nodes, the surface of the diaphragm.

A complete staging operation typically includes:

• Careful inspection of the entire abdominal cavity
• Washings of fluid from the abdomen for cancer cell analysis
• Removal of the affected ovary or both ovaries with their fallopian tubes
• Removal of the uterus (in most cases)
• Omentectomy — removal of the fatty apron called the omentum
• Biopsies of the peritoneum (abdominal lining) in multiple locations
• Sampling or removal of pelvic and abdominal lymph nodes

Proper staging matters because women initially thought to have early-stage disease are sometimes upstaged when microscopic spread is found, which changes the chemotherapy decision.

Primary Debulking Surgery

Primary debulking surgery is performed as the first treatment for women with advanced ovarian cancer that is considered surgically removable upfront. The surgical goal is complete cytoreduction — leaving no visible cancer behind. To achieve this, the operation may involve, in addition to the standard steps above:

• Removal of tumour deposits from the pelvis, abdomen, and peritoneum
• Resection of a portion of bowel if cancer involves it
• Removal of tumour from the surface of the liver, diaphragm, or spleen
• Splenectomy (removal of the spleen) when needed
• Removal of involved lymph nodes

Interval Debulking Surgery

Interval debulking surgery is performed after a course of neoadjuvant chemotherapy — usually three to four cycles — in women whose disease was judged too extensive or whose general condition was not fit enough for primary surgery. The chemotherapy first shrinks the cancer, making it more removable and the surgery less extensive. Outcomes with interval debulking, in well-selected patients, are similar to primary debulking, with the trade-off being a longer overall treatment timeline but typically fewer surgical complications. After interval surgery, the remaining chemotherapy cycles are given.

Fertility-Sparing Surgery

For a small group of younger women with very early-stage disease — typically stage IA, of a favourable tumour type, confined to one ovary — fertility-sparing surgery may be considered. In this operation, only the affected ovary and its fallopian tube are removed, while the uterus and the other ovary are preserved. Staging is still performed thoroughly through biopsies and lymph node sampling.

This is an individualised decision that depends on tumour type, careful surgical staging, and the woman’s wishes. Sometimes, after a woman has completed her family, a second operation to remove the remaining ovary and uterus is recommended. Discussions about preserving fertility before any cancer treatment — including options such as freezing eggs or ovarian tissue — are an important part of care for younger women and are best held with a reproductive specialist as early as possible.

Secondary Cytoreductive Surgery

If ovarian cancer returns after an initial complete response — particularly when the recurrence appears as a limited number of removable lesions and the disease-free interval has been long — a second surgery may be considered. This is selected carefully; it is not appropriate for all recurrences.

Preparing for Surgery

Preparation for ovarian cancer surgery is more involved than for many other operations because the surgery itself can be extensive. Most centres run a thorough pre-operative assessment that may include:

• Imaging. CT of the chest, abdomen, and pelvis, sometimes MRI or PET-CT, to map the extent of disease.
• Blood tests. CA-125, complete blood count, kidney and liver function, clotting profile.
• Heart and lung evaluation. ECG, echocardiogram, and lung function tests for women with relevant medical history or for very long operations.
• Anaesthesia review. The anaesthetist assesses fitness for prolonged surgery and plans pain management, often including epidural analgesia.
• Nutritional assessment. Many women with advanced ovarian cancer have lost weight or muscle mass before surgery. Improving nutrition before the operation, when time allows, supports recovery.
• Prehabilitation. Some centres offer structured programs combining nutrition, light exercise, and psychological support in the weeks leading up to surgery. Studies suggest these programs can improve post-operative recovery.
• Genetic counselling. Often arranged around the time of surgery if not done earlier.
• Bowel preparation. Some surgeons require this if bowel resection is anticipated.
• Discussion of stoma possibility. If bowel surgery is likely, the possibility of a temporary stoma (a surgically created opening for waste) is explained beforehand, and a stoma nurse may mark possible sites on your abdomen.

You will also be asked about all medications you take. Blood thinners, certain diabetes medicines, hormone therapies, and herbal supplements may need to be stopped or adjusted before surgery. Smoking and alcohol use should be reduced as much as possible — both affect healing.

Emotionally, this is a difficult time. Many cancer centres offer counselling, peer support, or access to a clinical psychologist before surgery. Family support — including planning who will help at home during the early weeks of recovery — is part of preparation too.

What Happens During Surgery

Ovarian cancer surgery is performed under general anaesthesia, meaning you are completely asleep throughout. Depending on the planned extent, the operation can last from two or three hours for limited staging surgery to six to eight hours or more for extensive debulking.

A typical advanced operation proceeds roughly like this:

1. You are anaesthetised, positioned on the operating table, and an epidural catheter or other pain control is set up.
2. A vertical (midline) incision is made through the abdomen, from below the breastbone to the pubic area in extensive cases. For early-stage or laparoscopic surgery, several small incisions are used instead.
3. The surgeon explores the entire abdominal cavity systematically — the pelvis, both sides of the abdomen, the bowel surfaces, the liver, the diaphragm, the omentum.
4. Fluid is collected for analysis. Frozen-section biopsies may be sent to the pathologist during surgery to guide decisions.
5. The uterus, ovaries, and fallopian tubes are removed (unless fertility-sparing surgery is being performed).
6. The omentum is removed.
7. Visible tumour deposits are removed from wherever they are found, which may include parts of the bowel, peritoneum, diaphragm surface, or other organs.
8. Lymph nodes are sampled or removed.
9. If part of the bowel has been removed, the two ends are rejoined; in some cases, a temporary stoma is created.
10. The abdomen is washed, drainage tubes are placed if needed, and the incision is closed in layers.

Throughout, the surgical team aims to remove all visible disease while balancing safety. Sometimes, despite the team’s best efforts, complete removal is not achievable; the operation is then planned to remove as much as can be safely taken.

Recovery and Healing

Recovery from ovarian cancer surgery happens in stages. The specifics depend on how extensive the operation was, whether the bowel was involved, and your general health.

In hospital

Hospital stay typically ranges from four to ten days, sometimes longer if bowel surgery has been performed or complications arise. The first day or two may involve time in a high-dependency or intensive care unit, especially after very long operations.

Care during this time includes:

• Pain control, often with an epidural for the first few days, transitioning to oral pain medicines
• Intravenous fluids until you can eat and drink
• Gradual reintroduction of food, starting with clear fluids and progressing as the bowel wakes up
• Early mobilisation — sitting up, then walking short distances — from the day after surgery, to reduce the risk of blood clots and pneumonia
• Blood-thinning injections to prevent clots
• Breathing exercises to keep the lungs clear
• Wound care and monitoring for infection

• First two weeks: Wound healing, fatigue is significant, light walking only, no lifting beyond a few kilograms.
• Two to six weeks: Gradual increase in activity, light household tasks, longer walks. Fatigue remains common.
• Six to eight weeks: Most daily activities resume. Driving usually possible by this point if your surgeon agrees.
• Eight to twelve weeks: Closer to full recovery, though chemotherapy — if scheduled — often begins around three to four weeks after surgery and brings its own demands on energy.

You will be asked to avoid heavy lifting, strenuous exercise, and sexual intercourse for at least six weeks. Your surgical team will give specific guidance based on your operation.

If chemotherapy is planned, it typically begins three to four weeks after surgery, once the surgical wound has healed adequately. The overlap of surgical recovery and chemotherapy means fatigue and emotional ups and downs are common during this period. Support from family, friends, and the oncology team matters a great deal.

Risks and Complications

Ovarian cancer surgery is major surgery, and risks scale with how extensive the operation is. Your surgical team will discuss these in detail before surgery. Possible complications include:

• Bleeding during or after surgery, sometimes requiring blood transfusion
• Infection — of the wound, urinary tract, chest, or abdomen
• Blood clots in the legs (DVT) or lungs (pulmonary embolism); prevention with blood thinners and early mobilisation is routine
• Bowel injury or, if bowel resection is performed, leakage at the join (anastomotic leak)
• Need for a stoma, sometimes temporary and sometimes permanent
• Slow return of bowel function (ileus), which can prolong hospital stay
• Lymphoedema — swelling in the legs — after extensive lymph node removal
• Fluid accumulation in the abdomen (ascites)
• Damage to nearby structures: bladder, ureter, blood vessels
• Wound healing problems, including separation of the wound edges (dehiscence) or incisional hernia later
• Anaesthesia-related complications
• Surgical menopause in pre-menopausal women whose ovaries are removed — this is an expected effect rather than a complication, but it brings its own symptoms (hot flushes, sleep disturbance, vaginal dryness, mood changes, bone health implications) that need management. Hormone replacement therapy may or may not be appropriate depending on the cancer type; this is discussed with your oncology team.

The risk of serious complications is higher with very extensive surgery and in women who are older or have other medical conditions. Outcomes are better in high-volume gynecologic oncology centres where the surgical team performs these operations regularly and post-operative care is highly experienced.

Life After Surgery

Chemotherapy and other treatments

For most women with ovarian cancer, chemotherapy is given after surgery (or in the case of interval debulking, the remaining cycles are completed after surgery). Standard regimens, based on NCCN, ESGO, and ESMO guidelines, include:

• Platinum-based chemotherapy (carboplatin), usually given together with a taxane (paclitaxel)
• Targeted therapy — including bevacizumab in some regimens, and PARP inhibitors (such as olaparib and niraparib) as maintenance therapy in women with BRCA mutations or other markers of platinum sensitivity

Radiation therapy is rarely used in ovarian cancer.

The exact regimen, number of cycles, and use of maintenance therapy depend on stage, tumour type, genetic findings, and how the cancer has responded.

Outlook and prognosis

The outlook after ovarian cancer surgery depends heavily on the stage at which the cancer was found and on whether complete tumour removal was achieved. In general:

• Early-stage disease (confined to the ovaries) has a substantially better outlook than advanced-stage disease.
• Women who finish surgery with no visible residual disease have better long-term outcomes than those with disease remaining.
• Tumours that respond well to platinum-based chemotherapy have a better outlook than those that do not.
• Newer treatments — particularly PARP inhibitors used as maintenance therapy in selected women — have meaningfully improved long-term outcomes over the past decade.

Your own outlook is best discussed with your oncology team, who can interpret your specific stage, tumour type, surgical findings, and genetic results.

Follow-up and surveillance

After completing treatment, regular follow-up is part of care, typically for at least five years and often longer. A standard schedule includes:

• Clinical review every three months for the first two years, gradually less often
• Pelvic examination at each visit
• CA-125 blood tests, when initial CA-125 was elevated
• Imaging (CT, ultrasound, or MRI) if symptoms or rising CA-125 suggest possible recurrence

Most recurrences occur within the first three years, which is why this period of follow-up is intensive. Your team will explain the symptoms to watch for between visits — persistent bloating, abdominal pain, changes in bowel habits, unexplained weight loss — and to report promptly.

Living after ovarian cancer surgery

The months after surgery and chemotherapy are a period of physical and emotional adjustment. Common areas of focus include:

• Menopause symptoms in women whose ovaries were removed before natural menopause. Management depends on tumour type and individual factors.
• Sexual health and intimacy. Changes after pelvic surgery and menopause are common; many centres have specialists who can help.
• Bowel and bladder changes, particularly after extensive surgery.
• Lymphoedema management if lymph nodes were removed.
• Bone health. Surgical menopause raises long-term osteoporosis risk; bone-protecting strategies are discussed.
• Emotional health. Anxiety about recurrence is common and normal. Counselling, support groups, and peer connections can help.
• Family implications. If a BRCA or other hereditary mutation has been found, close female relatives may be offered genetic counselling and screening.

Special Situations

Ovarian masses in younger women and adolescents

Ovarian cancer is uncommon in women under 30 and rare in adolescents and children. When it does occur in younger patients, the tumour types are often different from typical adult ovarian cancer — germ cell tumours and sex cord-stromal tumours predominate, and these often respond very well to surgery and chemotherapy. Fertility preservation is a central consideration in this age group and is discussed by a multidisciplinary team that usually includes a gynecologic oncologist and a fertility specialist.

Borderline ovarian tumours

Some ovarian tumours are described as “borderline” or “of low malignant potential.” They behave less aggressively than ovarian cancer, and surgery alone is often sufficient treatment. In younger women, fertility-sparing surgery is more commonly an option for borderline tumours than for invasive cancers.

Recurrent disease

If ovarian cancer recurs, the treatment plan depends on how long ago the original treatment ended, where the recurrence is, how sensitive the cancer was to previous platinum chemotherapy, and the woman’s overall condition. Options include further chemotherapy, targeted therapies, secondary surgery in selected cases, and clinical trial participation.

Frequently Asked Questions

How long will I be in hospital after ovarian cancer surgery?

Most women stay in hospital between four and ten days. Stays are shorter for early-stage or minimally invasive operations and longer for extensive debulking surgery, particularly when bowel resection is involved.

Will I need chemotherapy after surgery?

Most women with ovarian cancer receive chemotherapy after surgery. The main exception is very early-stage, favourable-type disease, where chemotherapy may not be needed. Your oncology team will explain the recommendation based on your final pathology results.

Can ovarian cancer surgery be done by keyhole or robotic methods?

For early-stage disease confined to the ovary, laparoscopic or robotic surgery may be an option. For advanced disease that requires extensive debulking, open surgery through a vertical incision is usually necessary so that the surgeon can safely access all areas where cancer may be present.

Will I go into menopause after surgery?

If both ovaries are removed and you have not yet gone through natural menopause, you will enter surgical menopause. Symptoms can begin within days. Your team will discuss management, which may or may not include hormone therapy depending on your cancer type.

Can I still have children after ovarian cancer surgery?

For most women with ovarian cancer, surgery removes the uterus, both ovaries, and fallopian tubes, which ends natural fertility. In carefully selected younger women with very early-stage disease, fertility-sparing surgery may preserve the uterus and one ovary. Fertility preservation options should be discussed with a reproductive specialist before any cancer treatment begins, when possible.

How soon can I return to normal activities?

Light activities resume within two to four weeks. Most daily activities return by six to eight weeks. Full recovery often takes two to three months, particularly when chemotherapy follows surgery.

What happens if the surgeon cannot remove all the cancer?

If complete removal is not achievable, the surgeon removes as much as can be safely taken. The remaining disease is treated with chemotherapy, sometimes followed by interval surgery if the disease responds well. Newer treatments such as PARP inhibitors and bevacizumab also help control disease that surgery cannot reach.

Do I need genetic testing?

Major guidelines recommend that all women diagnosed with epithelial ovarian cancer be offered genetic testing, particularly for BRCA1 and BRCA2 mutations. The results affect your treatment options — especially maintenance therapy — and have implications for blood relatives.

Will I need a stoma?

A stoma is needed only if part of the bowel has to be removed and the surgeon judges that a temporary diversion is safer than rejoining the bowel directly. Many bowel resections in ovarian cancer surgery do not require a stoma. If a stoma is a possibility, it is discussed before surgery and a stoma nurse usually meets you in advance.

How will I know if the cancer comes back?

Recurrence may be picked up at routine follow-up through rising CA-125 levels, findings on examination, imaging, or new symptoms such as persistent bloating, abdominal pain, or changes in bowel habits. Reporting any new persistent symptoms between visits is important.

Conclusion

Ovarian cancer surgery is one of the most important steps in treatment for most women diagnosed with this disease. It establishes the diagnosis, defines the stage, and removes as much visible cancer as possible — setting the stage for the chemotherapy and, in many cases, targeted maintenance therapy that follow.

The operation varies widely depending on the stage and extent of disease, from a relatively contained staging procedure for early cancers to extensive debulking surgery for advanced disease. The decision about timing — surgery first, or chemotherapy first — and about the scope of the operation is made by a multidisciplinary team based on imaging, your overall health, tumour characteristics, and your own goals.

Recovery takes time. The first six to eight weeks are focused on physical healing, and chemotherapy often begins during this period, bringing its own demands. Long-term follow-up — particularly during the first three years — is part of care for every woman after ovarian cancer treatment.

While ovarian cancer remains a serious diagnosis, the past two decades have brought meaningful improvements in surgical technique, supportive care, and systemic treatments such as PARP inhibitors. Treatment in an experienced gynecologic oncology centre, with a team that performs these operations regularly and coordinates closely with medical oncology and supportive care services, gives the best foundation for long-term outcome and quality of life.