What are chocolate cysts in the right?

Patient's question:

No

Doctor's answer:

Chocolate cyst is a pathological manifestation of endometriosis. The ectopic endometrium, similar to normal endometrium, undergoes synchronous bleeding and fibrosis of surrounding tissues in response to ovarian hormone changes. However, since its blood cannot be expelled from the vagina like menstrual blood, it accumulates locally and forms a retention cyst.