Severe endometrial ossification with subsequent conception and placenta accreta: a case report.

We report a severe case of endometrial ossification, requiring multiple hysteroscopies to restore fertility. Subsequent spontaneous conception occurred but there was a placenta previa and accreta. Treatment of severe endometrial ossification may increase the risk of morbidly adherent placenta, presumably due to damage to endometrium, leading to abnormal placentation.