Endometriosis is an often painful disorder women experience with symptoms varying from woman to woman.  The condition is where tissue that normally lines the inside of the uterus - the endometrium – grows outside of the uterus.  The endometrium is the tissue that thickens each month in preparation for possible implantation of an embryo.  If there is no implantation, then the lining or tissue will bleed known as a woman’s menstrual cycle.