Ovarian cancer forms from abnormal cell growth in one or both ovaries. Most cases are epithelial cell tumors. Symptoms include abdominal bloating and pain. Risk factors include age, family history, and never being pregnant. It is often diagnosed late since symptoms are vague, but earlier detection improves prognosis. Treatment typically involves surgery to remove the ovaries and chemotherapy. Nursing care focuses on managing pain, preventing infections and blood clots, and providing education and support.