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Ovarian Follicle

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.

Last Revised: October 12, 2010

Author: Healthwise Staff

Medical Review: Sarah Marshall, MD - Family Medicine & Kirtly Jones, MD - Obstetrics and Gynecology

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