Endometrioma (Chocolate Cyst): Endometrial Tissue Cysts on Ovaries

Endometrioma (chocolate cyst) is a benign cyst formed when endometrial tissue grows outside the uterus (ovaries most common; also fallopian tubes, ligaments, peritoneum). Filled with old, dark blood resembling chocolate.

Symptoms

• Pelvic pain (often menstrual)
• Infertility (can block fallopian tubes)

Treatment

• Medication: pain management, cyst shrinkage
• Surgery: cyst removal for severe cases