An ovarian follicle is a small sac (cyst) on the ovary. An egg matures inside of the follicle. When the egg is mature, the follicle bursts open and releases the egg.
|Primary Medical Reviewer||Sarah Marshall, MD - Family Medicine|
|Specialist Medical Reviewer||Kirtly Jones, MD - Obstetrics and Gynecology|
|Last Revised||October 8, 2012|
WebMD Medical Reference from Healthwise