Ovarian cysts are fluid-filled sacs that form on a woman’s ovaries. They are fairly common and usually benign, meaning they are not cancerous. Most ovarian cysts are caused by the normal function of the ovaries during the menstrual cycle, but they can also be caused by other conditions. Symptoms of ovarian cysts include abdominal pain or discomfort, bloating, breast tenderness, nausea, and unexplained changes in menstrual cycle. If a cyst ruptures, it can cause severe pain, fever, and shock. Diagnosis is usually done through a pelvic exam, ultrasound, or blood tests. Treatment for ovarian cysts depends on the size, type, and symptoms. Some cysts may resolve on their own without treatment. However, if a cyst is large, causing pain or discomfort, or suspected of being cancerous, it may need to be surgically removed. Ovarian cysts can have serious complications, so it is important to seek medical attention if any symptoms arise. Early diagnosis and treatment can help to prevent further complications and improve outcomes.