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Endometriomas of the Vulva

By

Charlie C. Kilpatrick

, MD, MEd, Baylor College of Medicine

Last full review/revision Mar 2021| Content last modified Mar 2021
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Topic Resources

Vulvar endometriomas are rare, painful, blood-filled cysts that develop when tissue from the lining of the uterus (endometrial tissue) appears in the vulva.

  • Endometriomas may be painful, particularly during sexual intercourse and before and during menstrual periods.

  • Doctors can usually diagnose endometriomas during a pelvic examination.

  • Endometriomas in the vulva are surgically removed.

For unknown reasons, patches of tissue from the lining of the uterus (endometrial tissue) sometimes appear outside the uterus. This disorder is called endometriosis Endometriosis In endometriosis, patches of endometrial tissue—normally occurring only in the lining of the uterus (endometrium)—appear outside the uterus. Why endometrial tissue appears outside the uterus... read more Endometriosis . Endometriosis rarely occurs in the vulva (the area that contains the external genital organs). It is more common in other locations, such as the ovaries.

Sometimes the endometrial tissue forms a cyst (endometrioma).

Endometriomas often develop at the site of a previous operation, such as an episiotomy (an incision to widen the opening of the vagina to help with delivery of a baby) or repair of a tear in the vagina or vulva that occurred during delivery.

External Female Genital Organs

External Female Genital Organs

Symptoms of Vulvar Endometriomas

Endometriomas may be painful, particularly during sexual intercourse. Endometriomas respond to hormones just as normal endometrial tissue does. Thus, they can enlarge and cause pain, particularly before and during menstrual periods. Endometriomas are tender and may look blue. They can rupture, causing severe pain.

Diagnosis of Vulvar Endometriomas

Treatment of Vulvar Endometriomas

  • Surgery

Endometriomas in the vulva are surgically removed. This procedure is usually done in an operating room but may be done in a doctor’s office. A local anesthetic is used.

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