Fertility in women with minimal endometriosis compared with normal women was assessed by means of a donor insemination program in unstimulated cycles.

OBJECTIVE: The purpose of this study was to compare the pregnancy rate in an artificial insemination donor program in women with minimal endometriosis and in women without endometriosis. STUDY DESIGN: A prospective double-blinded study was conducted in women with azoospermic partners. RESULTS: The per-cycle pregnancy rate was 8.6% (9/104 women) in the minimal endometriosis group vs 13.3% (26/196 women) in the control group. The per-woman pregnancy rate was 37.5% (9/24 women) in the minimal endometriosis group and 51.0% (26/51 women) in the control group. CONCLUSION: Pregnancy rates were statistically similar in normal women and in women with minimal endometriosis.