This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Gynaecology & Obstetrics
[{'content': 'A pregnant women, previous LSCS presents with hematuria. What is the likely diagnosis? \nSelect and explain. \nA. Eclampsia, B. Obstructed labour, C. Ureteral injury, D. Cystitis', 'role': 'user'}, {'content': "Answer: B \nExplanation: In obstructed labour the bladder becomes an abdominal organ and due to compression of urethra between the presenting pa and symphysis pubis, the patient fails to empty the bladder. The transverse depression at the junction of the superior border of the bladder and the distended lower segment is often confused with the Bandl's ring. The bladder wall gets traumatized which may lead to blood stained urine, a common finding in obstructed labour. Ref: D.C.Dutta 6th Ed Page 405.", 'role': 'assistant'}]