An anal fistula is a granulomatous canal around the anus that consists of three parts: an internal opening, a fistula, and an external opening. The internal opening is often located in the lower rectum or anal canal and is mostly one; the external opening is in the perianal skin and can be one or more. Anal fistulas are characterized by long-lasting or intermittent recurrent episodes and are one of the common rectal and anal canal diseases, second only to hemorrhoids in terms of incidence. Anal fistulas can occur at any age, and are especially common in young and middle-aged men. What are the symptoms of an anal fistula attack? The main symptom is a small amount of purulent, bloody, or mucus discharge that repeatedly flows from the external opening of the fistula. Irritation from the discharge makes the anal area moist, itchy, and sometimes eczema forms. When the external opening heals and an abscess forms in the fistula, there will be obvious pain, accompanied by systemic infection symptoms such as fever, chills, and malaise; the symptoms will be relieved after the abscess is punctured or cut and drained. Recurrent attacks of the above symptoms are the clinical characteristics of fistulas. Prevention, starting with diet and bowel movements Ask, who wants to live with pus, mucus and bad taste every day? Therefore, it is important to prevent the disease of anal fistula properly. The first thing that you need to do is to make sure that you have a good idea of what you are doing. The first step in preventing anal fistula is to establish good eating habits, eat less greasy, eat more light foods rich in vitamins, such as green beans, radish, winter squash and other fresh vegetables and fruits. The first step is to establish a good diet, less greasy, and more light foods rich in vitamins, such as green beans, radish, fresh vegetables and fruits. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. 3.Anal discomfort should be solved in time Anal burning discomfort, anal drop should go to the hospital in time, ask professionals to find out the cause and timely treatment. 4.Prevent constipation and diarrhea The prevention of constipation and diarrhea is important for the prevention of perianal rectal abscess, because dry stools can easily bruise the anal sinus, plus bacterial invasion and infection. The diarrhea is accompanied by a large number of bacteria can make the anal sinus infection, inflammation further development, and the formation of anal fistula. 5, develop good defecation habits Develop good defecation habits, daily sitz bath after defecation to keep the anus clean …… these have a positive effect on the prevention of infection. 6.Actively treat related diseases Some diseases are systemic venereal diseases that can cause perianal and rectal abscesses, such as ulcerative colitis and Crohn’s disease. In case you are unfortunate enough to be hit, be sure to actively treat it so that it does not develop into an anal fistula and make your body suffer more pain.