system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
The most common cause of vesicovaginal fistula(VVF) in under-developed countries would be:
assistant
The correct answer is  Causes of vesico vaginal fistula: Gynaecological Surgery: Most common cause in developed countries Obstetric injury/ Obstructed labour (leading to tissue necrosis): Most common cause in developing countries Radiation Malignancy Foreign bodies: forgotten pessaries Direct trauma Infective: TB, schistosomiasis, syphilis, LGV Endometriosis, perforating bladder calculi