Overview

What Is Ovarian Cancer?

Ovarian cancer is the uncontrolled growth of abnormal cells in or around an ovary. Several tumor types can develop from different cells or tissues linked to the ovaries, fallopian tubes, or nearby structures. This ovarian cancer disease can affect anyone with ovaries, although it occurs most often after menopause. Understanding what is ovarian cancer can help people recognize changes and seek appropriate medical advice.

Symptoms

Symptoms of Ovarian Cancer

  • Persistent abdominal bloating or swelling may cause the abdomen to look or feel larger.
  • Pelvic or abdominal pain or pressure may be ongoing or recurring.
  • Feeling full unusually quickly or having difficulty eating can occur.
  • Changes in urination or bowel habits may include urgency, frequency, constipation, or diarrhea.
  • Unusual vaginal bleeding or discharge, especially after menopause, should be medically assessed.
  • Fatigue, back pain, or unexplained weight change may occur alongside other symptoms.

WHEN SYMPTOMS MATTER

Persistent symptoms deserve attention

These symptoms are common and often have causes other than cancer. However, new, frequent, persistent, or unusual symptoms should be discussed with a healthcare professional rather than attributed to everyday digestive or menstrual changes.

Causes

What Causes Ovarian Cancer?

Ovarian cancer develops when genetic changes disrupt the normal growth, division, and repair of cells. Over time, abnormal cells may multiply, form a tumor, and invade nearby tissues. The specific initiating cause is often unknown, although inherited variants and other factors can affect risk.

Different tumor types can have different origins

Main types include epithelial tumors, germ cell tumors, and stromal cell tumors. Some high-grade serous cancers appear to begin in the fallopian tube rather than the ovary itself. Ovarian cancer is not contagious and is not caused by ordinary stress, sexual activity, or a single food.

Risk Factors

Risk Factors for Ovarian Cancer

  • Older age, particularly after menopause, is a risk factor that cannot be changed.
  • A close family history of ovarian, breast, colorectal, or related cancers may increase risk.
  • Inherited changes such as BRCA1, BRCA2, or Lynch syndrome-associated variants can raise risk.
  • A personal history of breast, colorectal, uterine, or related cancers may be associated with higher risk.
  • Certain reproductive or hormonal factors, including never having been pregnant, may affect risk.
  • Endometriosis or other relevant medical history may be associated with ovarian cancer risk.

Side Effects & Complications

Complications and Treatment Side Effects

Ovarian cancer can cause abdominal fluid buildup, bowel or urinary obstruction, blood clots, malnutrition, pain, and spread to nearby or distant organs. Complications vary according to the tumor, its location, and how far it has spread. Ovarian cancer treatment can also cause short-term or long-term effects that need medical support.

  • Surgery may cause pain, infection, bleeding, or changes in fertility and menopause status.
  • Chemotherapy may cause nausea, fatigue, hair loss, low blood counts, infection risk, or nerve symptoms.
  • Targeted or maintenance treatments can cause medication-specific effects that require monitoring.
  • Treatment can affect nutrition, bowel function, sexual health, mood, and daily activities.

DURING TREATMENT

Report concerning side effects promptly

Contact your treatment team promptly for fever, severe pain, shortness of breath, uncontrolled vomiting, heavy bleeding, or signs of infection. Follow the urgent-care instructions provided by your oncology team.

Diagnosis & Staging

How Ovarian Cancer Is Diagnosed and Staged

Evaluation usually begins with a medical history and physical or pelvic examination. Doctors may use pelvic imaging, such as ultrasound or CT, and selected blood tests such as CA-125 to gather information. Surgery or a biopsy may be needed for a definitive tissue diagnosis when appropriate, including identification of the tumor type and grade.

What staging means

StageGeneral meaning
ICancer is limited to one or both ovaries or fallopian tubes.
IICancer has spread to other pelvic organs.
IIICancer has spread within the abdominal lining or to nearby lymph nodes.
IVCancer has spread to distant organs or sites outside the abdomen.

Treatment Options

Ovarian Cancer Treatment Options

SURGERY

Surgery removes visible tumor and may also be used to determine the extent of disease or reduce tumor burden through staging or debulking.

CHEMOTHERAPY

Anticancer medicines may be given before or after surgery, or to treat recurrent disease, depending on the tumor and treatment plan.

TARGETED AND MAINTENANCE THERAPY

Biomarker-guided medicines and maintenance treatments may be appropriate for selected patients to help control disease after initial treatment.

RADIATION AND CLINICAL TRIALS

Radiation has a selective role in ovarian cancer, while clinical trials may provide access to additional treatments or combinations.

Treatment depends on stage, tumor type and grade, genetic or molecular findings, overall health, fertility goals, prior treatment, and whether the cancer has returned. A treatment plan may combine surgery, chemotherapy, targeted medicines, hormone therapy for selected tumors, radiation, and supportive care.

Prevention

Ovarian Cancer Prevention

No strategy prevents every case of ovarian cancer. There is no recommended routine screening test for average-risk people without symptoms; pelvic examinations, ultrasound, and CA-125 are not dependable general screening tests. People with symptoms or a high-risk genetic background may need individualized medical evaluation.

  • People with relevant inherited variants may discuss genetic counseling and risk-reducing surgery with a specialist.
  • Some hormonal or reproductive factors may be associated with lower risk, but medication decisions should be individualized.
  • Do not use ovarian cancer screening tests outside clinician-directed evaluation of symptoms or high-risk surveillance.
  • Know your personal and family cancer history and discuss concerning changes with a healthcare professional.

Outlook and Prognosis

Ovarian Cancer Outlook and Prognosis

The outlook depends on the stage at diagnosis, tumor type and grade, molecular features, overall health, response to treatment, and whether the cancer recurs. Some cases can be cured, while others can be controlled for periods of time with treatment. A doctor can explain how these factors apply to an individual situation; general ovarian cancer survival rate statistics cannot predict one person’s outcome.

Varies

Outlook depends on stage and tumor features

Individualized

Treatment response and overall health matter

Not predictive

Population statistics do not predict one person’s outcome

Survivorship & Follow-up

Ovarian Cancer Survivorship and Follow-Up

Follow-up after ovarian cancer treatment is individualized and may include visits, symptom review, physical examination, selected blood tests or imaging, and discussion of treatment effects. Routine testing schedules vary according to the cancer, treatment, and personal health needs. Report new or persistent concerns between appointments instead of waiting for the next scheduled visit.

  • Discuss recurrence concerns and report new symptoms promptly.
  • Ask about management of menopause, fertility, sexual health, pain, fatigue, and neuropathy.
  • Review bone and heart health when relevant to previous treatment and personal risk.
  • Maintain healthy nutrition and activity as appropriate for your recovery.
  • Seek help for anxiety, depression, emotional distress, or other wellbeing concerns.
  • Ask whether genetic counseling is appropriate for you or your family.
  • Coordinate primary care and oncology care, including preventive health needs.
  • Keep a written survivorship care plan with treatment history, follow-up appointments, and recommended health maintenance.

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