Depending on their size, ovarian cysts can cause symptoms. There are other types of ovarian cysts, but functional cysts are the most common. These cysts are benign (that is, not cancerous).
Most ovarian cysts form at the time of ovulation and are known as functional cysts. Ovarian cysts are common, especially during a woman’s childbearing years. Fluid-Filled Sacs Within or on the OvaryĪn ovarian cyst is a sac filled with fluid that forms inside or on the surface of an ovary. Winnie Palmer Hospital for Women & Babies, Christine Greves, M.D.US Pharm.Johns Hopkins School of Medicine, Management of Ruptured Ovarian Cyst.