Bandle ring on uterus suggests: (A) Cervical dystocia, (B) Cochleate uterus, (C) Hypeonic uterus, (D) Obstructed labour
Answer is D. In Tonic Uterine Contraction and Retraction, a circular groove encircling the uterus is formed between the active upper segment and the distended lower segment, called pathological retraction ring (Bandl's ring). Reference: D C Dutta Textbook of Obstetrics 7th edition page 362