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
Which of the following tubal obstruction locations is least amenable to surgical repair?
assistant
The correct answer is  Proximal obstruction of Fallopian tube especially Interstitial part is very prone to repeated obstruction post-operatively. So it cannot be treated with cannulation.