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 ReviewerSarah Marshall, MD - Family Medicine
Specialist Medical ReviewerKirtly Jones, MD - Obstetrics and Gynecology
Current as ofMarch 12, 2014
WebMD Medical Reference from Healthwise