Use this guide one step at a time.
An ovarian cancer diagnosis often arrives after weeks or months of symptoms that seemed nonspecific. The name may also cover a fallopian tube or primary peritoneal cancer treated along the same pathway. Your pathology, stage, surgical findings, and inherited and tumor test results help make the choices more concrete. You can ask the team to explain which decisions are time-sensitive, which can wait, and how each option may affect daily life, fertility, menopause, and recovery.
Key points
- Before treatment starts.
Subtypes and biomarkers
Epithelial ovarian, fallopian tube, and primary peritoneal cancers arise in similar tissue and are generally evaluated and treated together. High-grade serous carcinoma is the most common epithelial form; low-grade serous, endometrioid, clear cell, and mucinous cancers can behave differently and may lead to different treatment discussions. Germ cell and sex-cord stromal tumors are distinct, less common diseases with their own age patterns, markers, and therapies. For epithelial cancer, inherited testing can look for BRCA1, BRCA2, Lynch syndrome genes, and other cancer-predisposition variants. Tumor testing can identify BRCA changes, homologous-recombination features, and other biomarkers that may shape maintenance or recurrent-disease options.
What is ovarian cancer?
Epithelial ovarian, fallopian tube, and primary peritoneal cancers are closely related. Many high-grade serous cancers appear to begin in the fimbrial end of a fallopian tube and can spread across peritoneal surfaces before detection. Less common ovarian cancers include germ cell and sex-cord stromal tumors, which often affect different age groups and use different treatments. Risk is influenced by age, family history, endometriosis, and inherited variants such as BRCA1, BRCA2, and Lynch syndrome genes. Pregnancy, oral contraceptive use, and risk-reducing removal of tubes and ovaries can lower risk in specific contexts. No screening strategy has been shown to reduce mortality in average-risk people. Genetic counseling and germline testing are important after an epithelial ovarian cancer diagnosis, regardless of family history, and tumor testing can guide maintenance or recurrent-disease therapy. Care depends on histology, stage, residual disease after surgery, biomarkers, health, and preferences.
Signs and symptoms
Ovarian cancer symptoms may be subtle but tend to be persistent or represent a change from normal. Possible findings include abdominal or pelvic pain, bloating, increasing abdominal size, feeling full quickly, difficulty eating, urinary urgency or frequency, constipation, back pain, fatigue, pain during sex, menstrual changes, or unexplained weight change. Fluid in the abdomen can cause swelling, pressure, or shortness of breath. Germ cell or stromal tumors may sometimes cause pain, a mass, or hormone-related bleeding. Digestive, urinary, gynecologic, and other noncancer conditions commonly cause the same symptoms. A short-lived symptom is usually not specific, but new symptoms that occur frequently or worsen deserve evaluation. Sudden severe pelvic pain, fainting, heavy bleeding, or acute breathing difficulty requires urgent medical care.
Diagnosis and staging
Evaluation includes medical and family history, pelvic examination, and imaging, often transvaginal ultrasound and CT. Blood tests may include CA-125, which can support evaluation and monitoring but is not sufficiently specific to diagnose ovarian cancer or screen average-risk people. Diagnosis and staging usually occur during surgery, when tissue is examined and the abdomen and pelvis are assessed for spread. If chemotherapy is planned before surgery, image-guided biopsy or fluid cytology may confirm disease. Pathology determines epithelial subtype, grade, or a distinct germ cell or stromal tumor. FIGO stages I through IV describe confinement to ovaries or tubes, pelvic spread, peritoneal or nodal spread, and distant metastasis. Germline testing and tumor testing for BRCA-related homologous-recombination features and other markers guide some treatments. Care depends on histology, stage, surgical findings, biomarkers, health, and preferences. Operative findings, washings, and tissue from sampled sites contribute to final stage. Expert gynecologic pathology review can be valuable for uncommon tumors.
Established treatment paths
Epithelial ovarian, fallopian tube, and primary peritoneal cancers are commonly treated with cytoreductive surgery and platinum-based chemotherapy. Surgery aims to remove visible disease and typically includes staging procedures; fertility-sparing surgery may be possible for carefully selected early tumors. Chemotherapy may be given before surgery when initial complete removal is unlikely or immediate surgery is unsafe, followed by interval surgery and additional chemotherapy. Maintenance treatment after response can include a PARP inhibitor, bevacizumab, or observation, depending on BRCA and homologous-recombination findings, stage, response, risks, and prior therapy. Recurrent disease is treated according to the time since platinum, prior drugs, biomarkers, symptoms, and goals, using chemotherapy, targeted drugs, surgery in selected cases, or clinical trials. Germ cell tumors are often highly sensitive to combination chemotherapy, while stromal tumors may use surgery, chemotherapy, or hormone therapy. Procedures can relieve ascites or bowel obstruction. The plan depends on tumor type, stage, surgical result, biomarkers, prior treatment, fertility goals, health, and preferences. Decisions about surgery are best made with a gynecologic oncologist experienced in ovarian cancer. Response is followed with symptoms, imaging, and sometimes CA-125 trends.
Supportive care
Ovarian cancer and its treatment can cause abdominal pressure, ascites, early fullness, nausea, constipation, bowel obstruction, fatigue, neuropathy, and changes in sexual health or menopause. A dietitian can help with small-volume meals and maintaining intake when fullness is limiting; procedures or medicines may relieve fluid buildup or obstruction when appropriate. Pelvic-floor rehabilitation, menopause care, fertility counseling, pain management, social work, and palliative care can be added alongside cancer-directed treatment.
Profiles documenting ovarian cancer care
These profiles mention a matching cancer specialty in their published materials. Browse their locations, reported services, and practical details.
Sources
Source information checked: 2026-10-01. The links below identify the public and clinic-provided materials used for this page.
- NCI: Ovarian Cancer ↗Checked 2026-09-29
- NCI PDQ: Ovarian Epithelial, Fallopian Tube, and Peritoneal Cancer Treatment ↗Checked 2026-09-29
- NCI: Ovarian Cancer Health Professional Overview ↗Checked 2026-09-29
- NCI: Genetic Testing for Inherited Cancer Risk ↗Checked 2026-10-01
- NCI: Ascites and Cancer ↗Checked 2026-10-01
- NCI: Bowel Obstruction and Cancer ↗Checked 2026-10-01
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