Endometriosis is found in some infertile women, and treatment by laparotomy and/or hormonal therapy is associated with subsequent pregnancy. In this study, 100 consecutive patients with mild/moderate endometriosis were treated at laparoscopy. Forty of these women achieved a pregnancy within 37 months postoperatively; 73% of these pregnancies occurred within 6 months, and 88% within 12 months of operation. Although this pregnancy rate is similar to rates obtained after treatment by laparotomy and/or hormonal therapy, the pregnancies in this study population occurred significantly earlier than after laparotomy or combined therapy. The age of the women, duration of infertility, parity, extent of endometriosis, or presence of additional treatable factors of infertility did not affect the pregnancy rate. There was no significant morbidity, and the procedure can be performed on an outpatient basis with local anesthesia. Laparoscopy offers a practicable alternative for the treatment of mild/moderate endometriosis in infertile women.