If you are experiencing a medical emergency please dial 911 immediately
A functional ovarian cyst is a fluid-filled sac on your ovary. Most of these cysts are harmless and will go away on their own. But some may rupture, twist, or bleed, which can be very painful.
Last Revised: October 9, 2012
Author: Healthwise Staff
Medical Review: Sarah Marshall, MD - Family Medicine & Kirtly Jones, MD - Obstetrics and Gynecology
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