Most rectal fistulas are caused by recurrent inflammation and ulceration of the intestinal mucosa. Repeated inflammation and ulceration of the digestive system not only affects the absorption of food and nutrients, but also affects the health of the intestinal tract, which can lead to impairment of blood flow to the intestine, and even in some patients the intestinal system can break down and communicate directly with the body surface. Rectal fistulas are divided into internal and external fistulas, and when the fractured part of the rectum passes through the abdominal wall and even communicates with the outside world, it is called an external fistula. In some patients, rectal fistulas are called internal fistulas when the contents of the rectum do not exit the abdominal wall. The actual fact is that you will be able to get a lot more than just a few of the most popular and popular items in the marketplace.