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.
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By:
Healthwise Staff
Last Revised: October 9, 2012
Medical Review:
Sarah Marshall, MD - Family Medicine Kirtly Jones, MD - Obstetrics and Gynecology
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