Ovarian cysts are fluid-filled sacs that sometimes form in or on the ovaries. They are especially common in women of child-bearing age, although they can occasionally happen in women who have gone through menopause. Usually, they are painless and harmless. Many people even have cysts that come and go during their cycle. Some cysts, though, can be painful or indicative of other problems. Learn to recognize the symptoms of an ovarian cyst, and work with your doctor to figure out the best treatment plan for you. While many cysts will eventually go away on their own, others may have to be removed surgically. Depending on how severe your cyst is, you may need either laparoscopic surgery or a more invasive surgery called laparotomy.