Endometriosis is one of the leading causes of infertility. Endometriosis is defined as a chronic condition where tissue that is similar to the lining of the uterus (endometrium) grows outside of the uterine cavity. This tissue is considered to be misplaced and can implant in various parts of the body, including the ovaries, fallopian tubes, pelvic walls, and even the lungs. Key characteristics of endometriosis include the following: Implantation of endometrial-like tissue in areas outside the uterus. Can cause pain, from mild to debilitating, especially during menstruation. May lead to heavy or irregular periods, infertility, and bowel issues. While the exact cause is still unknown, it is believed to involve retrograde menstruation (when endometrial cells flow backwards through the fallopian tubes). There is no cure, but treatments can manage symptoms, allow for increased fertility, and improve quality of life. Diagnosing Endometriosis There are three main ways to diagnose ...