After the healing of anal fistula surgery, the stool can not be wiped clean, which may be caused by local tissue damage, sensory abnormalities and so on. Anal fistula surgery will often cause damage to local tissues, may lead to local sphincter contraction or relaxation abnormal or local tissue edema, can make the patient appear defecation is not complete, resulting in the patient’s stool wipe is not clean, this kind of situation patients can be used to warm water sitz bath to slowly improve. Some patients after anal fistula surgery, because the sphincter muscle non-stop stimulation, easy to cause patients to feel abnormal, resulting in patients feel their stool is not wiped clean, this kind of situation can also be warm water bath or hemorrhoid suppository and other medication. After anal fistula surgery, patients should pay attention to a light diet, avoid eating spicy and stimulating food, so as not to lead to poor wound healing. It is recommended that patients go to the hospital for review and consult with their doctors to avoid delays.