Twenty-five patients were evaluated for reproductive failure and menstrual dysfunction before and after therapy of intrauterine adhesions. The patients were classified according to the extent of adhesion formation by means of a classification proposed by Toaff and Ballas. A pretherapy successful pregnancy rate of 32% was increased to 52% posttherapy. The spontaneous abortion rate of 78% was improved to 20% posttherapy. Altered menstrual function was noted in six of 25 patients. A correlation between the extent of intrauterine adhesion formation and pregnancy outcome following therapy could not be demonstrated. The authors recommend the adoption of a classification system based on hysteroscopic findings which may serve as a standard method of reporting to allow for comparison of treatment regimens and ultimately for prediction of pregnancy outcome.