Ovarian cancer is cancer that starts in the ovaries. The ovaries are the female reproductive organs that produce eggs.
Ovarian cancer is the fifth most common cancer among women. It causes more deaths than any other type of female reproductive organ cancer.
The cause of ovarian cancer is unknown.
Risks of developing ovarian cancer include any of the following:
- The fewer children a woman has and the later in life she gives birth, the higher her risk for ovarian cancer.
- Women who have had breast cancer or have a family history of breast or ovarian cancer have an increased risk for ovarian cancer (due to defects in genes such as BRCA1 or BRCA2).
- Women who take estrogen replacement only (not with progesterone) for 5 years or more may have a higher risk for ovarian cancer. Birth control pills, though, decrease the risk for ovarian cancer.
- Fertility medicine probably does not increase the risk for ovarian cancer.
- Older women are at highest risk of developing ovarian cancer. Most deaths from ovarian cancer occur in women age 55 and older.
Ovarian cancer symptoms are often vague. Women and their doctors often blame the symptoms on other, more common conditions. By the time the cancer is diagnosed, the tumor has often spread beyond the ovaries.
See your doctor if you have the following symptoms on a daily basis for more than a few weeks:
- Bloating or swelling in the belly area
- Difficulty eating or feeling full quickly (early satiety)
- Pelvic or lower abdominal pain (area may feel "heavy")
- Back pain
- Swollen lymph nodes in groin
Other symptoms that can occur:
Exams and Tests
A physical exam may often be normal. With advanced ovarian cancer, the doctor may find a swollen abdomen often due to accumulation of fluid (ascites).
Ascites is the build-up of fluid in the space between the lining of the abdomen and abdominal organs.Read Article Now Book Mark Article
A pelvic examination may reveal an ovarian or abdominal mass.
An abdominal mass is swelling in one part of the belly area (abdomen).Read Article Now Book Mark Article
A CA-125 blood test is not considered a good screening test for ovarian cancer. But, it may be done if a woman has:
CA-125 blood test
The CA-125 blood test measures the level of the protein CA-125 in the blood.Read Article Now Book Mark Article
- Symptoms of ovarian cancer
- Already been diagnosed with ovarian cancer to determine how well treatment is working
Other tests that may be done include:
- Complete blood count and blood chemistry
- Pregnancy test (serum HCG)
- CT or MRI of the pelvis or abdomen
A computed tomography (CT) scan of the pelvis is an imaging method that uses x-rays to create cross-sectional pictures of the area between the hip bo...Read Article Now Book Mark Article
- Ultrasound of the pelvis
Pelvic laparoscopy is surgery to examine pelvic organs. It uses a viewing tool called a laparoscope. The surgery is also used to treat certain dise...Read Article Now Book Mark Article
Abdominal exploration is surgery to look at the organs and structures in your belly area (abdomen). This includes your:AppendixBladderGallbladderIn...Read Article Now Book Mark Article
A biopsy is the removal of a small piece of tissue for laboratory examination.Read Article Now Book Mark Article
No lab or imaging test has ever been shown to be able to successfully screen for or diagnose ovarian cancer in its early stages, so no standard screening tests are recommended at this time.
Surgery is used to treat all stages of ovarian cancer. For early stages, surgery may be the only treatment needed. Surgery may involve removing both ovaries and fallopian tubes, the uterus, or other structures in the belly or pelvis.The goals of surgery for ovarian cancer are:
- Sample normal appearing areas to see if the cancer has spread (staging)
- Remove any areas of tumor spread (debulking)
Chemotherapy is used after surgery to treat any cancer that remains. Chemotherapy can also be used if the cancer comes back (relapses). Chemotherapy is typically given intravenously (through an IV). It can also be injected directly into the abdominal cavity (intraperitoneal, or IP).
The term chemotherapy is used to describe cancer-killing drugs. Chemotherapy may be used to:Cure the cancerShrink the cancerPrevent the cancer from ...Read Article Now Book Mark Article
Radiation therapy is rarely used to treat ovarian cancer.
Radiation therapy uses high-powered radiation (such as x-rays or gamma rays), particles, or radioactive seeds to kill cancer cells.Read Article Now Book Mark Article
After surgery and chemotherapy, follow instructions about how often you should see your doctor and the tests you should have.
You can ease the stress of illness by joining a cancer support group. Sharing with others who have common experiences and problems can help you not feel alone.
Ovarian cancer is rarely diagnosed in its early stages. It is usually quite advanced by the time diagnosis is made:
- Nearly one half of women live longer than 5 years after diagnosis
- If diagnosis is made early in the disease and treatment is received before the cancer spreads outside the ovary, the 5-year survival rate is high
When to Contact a Medical Professional
Contact your health care provider if you are a woman 40 years or older who has not recently had a pelvic exam. Routine pelvic exams are recommended for all women 20 years or older.
Request an appointment with your provider if you have symptoms of ovarian cancer.
There are no standard recommendations for screening women without symptoms (asymptomatic) for ovarian cancer. Pelvic ultrasound or a blood test, such as CA-125, have not been found to be effective and are not recommended.
Genetic testing for the BRCA1 or BRCA2, or other cancer-related genes, may be recommended for women at high risk for ovarian cancer. These are women who have a personal or family history of breast or ovarian cancer.
Genetic testing for the BRCA1 or BRCA2
The BRCA1 and BRCA2 gene test is a blood test that can tell you if you have a higher risk of getting cancer. The name BRCA comes from the first two ...Read Article Now Book Mark Article
Removing the ovaries and fallopian tubes and possibly the uterus in women who have a proven mutation in the BRCA1 or BRCA2 gene may reduce the risk of developing ovarian cancer. But, ovarian cancer may still develop in other areas of the pelvis.
Howard Goodman, MD, Gynecologic Oncology, Florida Cancer Specialists & Research Institute, West Palm Beach, FL. Review provided by VeriMed Healthcare Network. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
Coleman RL, Liu J, Matsuo K, Thaker PH, Westin SN, Sood AK. Carcinoma of the ovaries and fallopian tubes. In: Niederhuber JE, Armitage JO, Kastan MB, Doroshow JH, Tepper JE, eds. Abeloff's Clinical Oncology. 6th ed. Philadelphia, PA: Elsevier; 2020:chap 86.
Coleman RL, Westin SN, Ramirez PT, Salvo G, Gershenson DM. Malignant diseases of the ovary, fallopian tube, and peritoneum. In: Lobo RA, Gershenson DM, Lentz GM, Valea FA, eds. Comprehensive Gynecology. 8th ed. Philadelphia, PA: Elsevier; 2022:chap 33.
National Cancer Institute website. BRCA gene mutations: cancer risk and genetic testing. www.cancer.gov/about-cancer/causes-prevention/genetics/brca-fact-sheet. Updated November 19, 2020. Accessed December 15, 2022.