Functional Ovarian Cyst

Functional ovarian cyst

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An ovarian cyst is a fluid-filled sac (follicle) that contains a maturing egg. It forms on the ovary's surface, then disappears not long after it releases the egg. If a mature egg is not released or if the sac reseals after releasing the egg, the sac can swell up with fluid, forming a functional ovarian cyst.

Most functional ovarian cysts do not cause symptoms and go away by themselves. But they do sometimes rupture, twist, or bleed, which can cause severe pelvic pain.

ByHealthwise Staff
Primary Medical Reviewer Sarah Marshall, MD - Family Medicine
Martin J. Gabica, MD - Family Medicine
Specialist Medical Reviewer Kirtly Jones, MD - Obstetrics and Gynecology

Current as ofFebruary 25, 2016

Current as of: February 25, 2016

Author: Healthwise Staff

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