Endometriosis is a painful condition associated with tissue from the lining of the uterus (endometrium) in other areas of the body, such as ovaries, tubes, behind the uterus, even distant areas as lungs or kidneys. It is likely due to heredity, immune system, lymphatic or vascular system. These areas cause cramps, severe pain, painful intercourse, pelvic and lower back pain, heavy menses, irregular menses, painful bowel movements or pain during urination.
It is estimated that 5.5 million women in the US have this condition. It is one of the most common causes of infertility. 35% of women with endometriosis have infertility. Treatment is medical and surgical.