1, avoid cold: after many cases of observation confirmed that most patients belong to the cold body, and meet the change of season from hot to cold, hot and cold changes, easy to relapse when greedy cold drinking cold. 2, avoid depression: life is calm and empty, not anxious and not impatient, and actively resolve conflicts, without emotional interference. 3, avoid overeating: ulcerative colitis patients advocate a light diet, avoid overeating, in addition to the process of eating food that has not been eaten, it is appropriate to try first, there is a reaction is not to eat, no reaction to eat again. At present, milk is considered to be used with caution and shabu-shabu is appropriate for recurrence. Each patient’s sensitivity to diet is different, so I hope that patients carefully observe the reaction after paying attention to the commonly used diet. 4, avoid over fatigue: this disease in the financial, teachers, IB sector staff susceptible, they work hard, stress, vascular easy tension, intravascular thrombosis can occur in the distal mucosal ischemic ulcers, so avoid over fatigue.