<prompt> Which among the following is the MOST common congenital uterine malformation that causes recurrent aboions?Mullerian fusion defectsUterine syncytiumCervical incompetenceUterine agenesis  <response>: Anatomical abnormalities are responsible for 10-15 of recurrent aboion. Congenital and acquired anomalies. Congenital anomalies are due to defects in the Mullerian duct fusion or resorption e.g. unicornuate, bicornuate, septate or double uterus. This causes about 12 cases of recurrent aboions. Acquired anomalies are, Intrauterine adhesions Uterine fibroids Endometrosis Cervical incompetence Ref: Textbook of Obstetrics by D C Dutta, 6th edition, Page 169. 