Frequent gauze changes for anal fistula are generally preferable. Because in anal fistula surgery, the incision is often open, itself will have a certain amount of secretion, need to change gauze frequently to be able to keep the wound clean, help promote the healing of the wound. If the gauze is contaminated and not changed in a timely manner, it may cause infection and is not conducive to wound healing. In addition, after anal fistula surgery may lead to constant bleeding from the wound site, the gauze plugging time is often longer, usually need 3 to 5 days, when the wound site is no obvious blood seepage, before you can stop using gauze. In addition, after anal fistula surgery to change gauze should pay attention to observe the recovery of the wound, if the localization of obvious redness, swelling and pain, it is likely to be caused by infection, the need for timely medical attention. Patients after anal fistula surgery, specific notes on changing medication, it is recommended that patients consult a doctor when changing medication or review, which is conducive to the detection and recovery of the condition.