This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Labour - II, Subject name: Gynaecology & Obstetrics
What is the most common reason of a mid Vesicovaginal Fistula? 
Select and explain. 
A. Radiation injury, B. Cervical cancer, C. Obstructed labour, D. Forceps delivery
C: Obstructed labour
Answer: C: Obstructed labour 
Explanation: Most Common fistula in India is obstetric fistula because of obstructed labor in mid vesicovaginal area. Forceps injury and vaginal hysterectomy causes high vesicovaginal fistula. Radiation injuries causes low vesicovaginal fistula.