The prognosis depends upon the severity of endometriosis, and location of the endometriotic lesions. In women with mild endometriosis, thefertilityratesare about 75% even without any therapy. The fertility rates are low in women with severe endometriosis, because of the distortion and obstruction of the fallopian tubes. These women require surgery to release adhesions and restore the normal pelvic anatomy. The fertility rates in women with advanced endometriosis is around 30-40%. Ovulation induction with or without intrauterine insemination are the two measures used to improve the fertility rates, in women with endometriosis associated infertility.