The presence of focal ectopic endometrial cells (glandular and stromal cells) outside the uterine cavity is defined as endometriosis. Endometriosis is a common disease in women, whose cause is not known yet. Several theories try to explain the origin and development of this disease, being the theory named “retrograde menstruation", one of the most accepted theory. This theory, proposes that part of menstrual flow would pass through the fallopian tubes to abdominal cavity, instead of heading into the vagina through cervix. Endometrial cells would establish anywhere of abdominal cavity, giving rise to the so-called endometriotic focus.
Mantinan Vivanco.I and Maru Hermosa de la Llama*
Reproductive Immunology: Open Access received 237 citations as per google scholar report