Primary umbilical endometriosis presenting with umbilical bleeding: A case report.

Endometriosis is a condition in which endometrial tissue implants outside the uterine cavity, which can cause cyclic pain, dysmenorrhea, dyspareunia, and infertility. Endometriosis implants are typically seen on pelvic peritoneal surfaces and extra-pelvic disease is uncommon. We present an interesting case of primary umbilical endometriosis in a patient who presented with umbilical bleeding with a history of pelvic inflammatory disease complicated by bilateral tubo-ovarian abscesses.