Fusion anomalies of uterus results in a variety of uterine shapes which cause increased incidence of miscarriage, poor fetal growth, malpresentation and abnormal placental adherence in such cases. Prevalence of uterine anomalies in general population is 7-8%. We are presenting a case report of a 20-year-old P0 patient who presented with acute abdomen. Ultrasonography revealed a hemorrhagic cyst. On laparotomy, it was found to be unicornuate uterus with hematometra in the noncommunicating arm. She was subjected to surgical correction which led to a bicornuate uterus and thereafter she was conceive twice successfully.