The uterus also called the womb is a hollow, pear-shaped muscular organ of the female reproductive system found in the pelvic area between the bladder and the rectum. It is usually the size of a fist. The uterus is connected to the fallopian tubes (responsible for transferring eggs from your ovaries into the uterus). The cervix is the lower part of the uterus and connects to the vagina. The corpus or fundus is the wider, upper part of the uterus. The uterus consists of 3 layers: Endometrium: this is the inner lining and it is shed during your period.Myometrium: this is the thick middle muscle layer of the corpus or fundus. This expands during pregnancy to hold the growing baby. During labor, it contracts to push the baby out.Serosa: this is the smooth outer layer. It covers the uterus and makes mobility of the uterus easy. Endometriosis happens when cells of the endometrium (endometrial tissue) grow outside the uterus. Common locations of endometriotic implants are: PeritoneumPelvic organs: ovaries (most common & usually bilateral), fallopian tubes, bladder, cervix, rectouterine pouch.Extra-pelvic organs: diaphragm, lungs, bowel, laparotomy scars. The cause of endometriosis is not yet fully understood. Risk factors include: a family history of the conditionretrograde menstruation (backflow of menstrual fluid containing endometrial cells)coelomic metaplasiaiatrogenic implantation (postsurgical scars through episiotomy or laparotomy as…