by Emily Goebel, MD FRCPC
March 9, 2023
What are cystic follicles and follicle cysts in the ovary?
Cystic follicles and follicle cysts are related non-cancerous changes commonly seen when the ovary of a reproductive-age woman is examined under the microscope. Both are created by the growth of a normal structure called a follicle that did not release its ovum (egg) during the menstrual cycle. As the follicle grows, an open space called a cyst develops in the center of the follicle.
What is the difference between a cystic follicle and a follicle cyst?
A cyst that measures less than 3 cm is called a cystic follicle. A cyst that measures more than 3 cm in size is called a follicle cyst.
What are the symptoms of a cystic follicle or follicle cyst in the ovary?
Cystic follicles in the ovary generally do not cause symptoms. However, a large follicle cyst can rupture and cause pelvic pain.
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