What is endometriosis? How does endometriosis affect my fertility?

Endometriosis is a chronic yet benign illness which is characterised by the presence of endometrial tissue (which produces menstruation) in ectopic zones such as the ovaries, Fallopian tubes or peritoneal cavity, producing internal menstruation and cysts made up of menstrual blood in the ovaries (chocolate cysts).

Endometriosis affects the quality of the eggs when located in the ovaries and also the functioning of the Fallopian tubes, producing adhesions in the interior of the abdominal cavity.