Ovarian cancer originates from the ovaries and constitutes 15-20% of genital malignancies. Risk factors include age, nulliparity, infertility, family history of breast or colon cancer, and hormone therapy. Symptoms include abdominal pain, bloating, weight changes, and urinary issues. Diagnosis involves imaging tests and tumor markers. Staging determines if the cancer is localized or spread. Treatment includes surgical removal of the ovaries and nearby tissue, chemotherapy with drugs like platinum and taxanes, and sometimes radiation. Nursing care focuses on managing pain, fatigue, nutrition, infection risk, and low self-esteem.