If your physician detects a cyst on your ovary, it may sound alarming, but it isn't always a danger to your health.
Cysts normally develop during the menstrual cycle.
Follicular cysts that contain the egg to be released can develop. These are normal, functional cysts that serve a purpose. An ovarian cyst is a fluid-filled sac that forms on an ovary. Functional cysts can be golf ball-size or larger, but the bigger they are, the more likely they are to be abnormal. The pain can be constant or occur only during sexual intercourse.