Abdominal wounds with fecal-like material form abnormal channels between the gastrointestinal tract for various reasons, pathological channels between the intestinal canal and other cavernous organs or between the intestinal canal and the body surface, all belong to the category of intestinal fistula. Treatment and prevention of fecal-like material flowing from abdominal wounds: I. Control of infection In the early stages of fistula, if the drainage is poor, a large amount of saline should be used to flush the abdominal cavity and make multiple drains when performing a dissection; or expand the fistula opening to facilitate drainage. The intestinal fistula or abdominal abscess is drained by continuous negative pressure for 24 hours with a double cannula. In the course of treatment, the formation of new abdominal abscesses is closely observed and dealt with in a timely manner. Second, the treatment of fistula 1, early mainly applied double cannula for continuous negative pressure drainage, the leakage of intestinal fluid as far as possible to drain outside the body. After about 1-4 weeks of drainage, a complete fistula can be formed and the intestinal fluid will no longer spill into the abdominal cavity outside the fistula. With continuous negative pressure drainage, a tubular fistula can usually heal spontaneously within 3-6 weeks if there are no factors that prevent the fistula from healing. Total gastrointestinal nutrition can reduce the amount of intestinal fluid secretion, and the addition of growth inhibitors can reduce the amount of intestinal fluid leakage and improve the self-healing rate and shorten the healing time of tubular fistula. 2, infection control, fistula formation, after the imaging confirmed no pus cavity, distal intestinal collaterals without obstruction, tubular fistula can be applied to block the fistula with medical adhesives to control the leakage of intestinal fluid and promote fistula healing. 3, lip-shaped fistula or fistula large, short fistula tubular fistula, available silicone film internal plugging, mechanical closure of the fistula, and to maintain the continuity of the intestinal tract, control the leakage of intestinal fluid, restore intestinal function, to simplify the treatment and strengthen the purpose of intestinal nutrition support. If the distal intestinal collaterals are obstructed, then “internal blocking” cannot be used and continuous negative pressure drainage should still be performed. If the fistula is not very large and the skin around the fistula is not eroded, an artificial anal bag can be used to protect the skin from erosion and reduce the number of drug changes, which is convenient for the patient. If the skin has erosion, change the dressing 1 to 2 times a day and generally do not need to apply ointment protection. If necessary, a compound zinc oxide ointment can be applied.