The cause of men’s anal fistula may be long-term consumption of spicy stimulating food, often diarrhea men, obese and sedentary men, etc.; in order to avoid the formation of anal fistula, patients should try to do a good job of prevention. 1. long-term consumption of spicy stimulating food: for long-term consumption of barbecue, fried food and tobacco and alcohol and other food for male patients, easy to cause gastrointestinal dampness and heat gathered, dry stools, constipation, etc., thus inducing fistula. 2. Frequent diarrhea men: for the daily bowel movements in 3-5 times, and the thin quality of the male patients, stimulate the mucous membrane of the anal canal, prone to infection and the formation of anal fistula. 3. obese and sedentary men: for obese men, due to the relatively large weight plus long-term sedentary, will lead to poor local blood circulation, resulting in the formation of fistula. For drivers and other special occupational groups, even if not obese, but long-term sedentary will also cause poor local blood circulation, the formation of fistula. The reason for the formation of anal fistula, there are other reasons, such as long-term late night labor, chronic ulcerative enteritis and so on. When the patient formed an anal fistula, it is recommended that timely to the regular hospital for examination, under the guidance of a professional doctor’s operation, to carry out reasonable standardized treatment, to avoid aggravation to the body to bring about adverse effects.