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 is true of ulcerative colitis:
assistant
The correct answer is  Ans. (c) Rectum is always involved* In ulcerative colitis rectum is always involved.* In ulcerative colitis least involved area: Anus