Hemorrhoids and anal fistula surgery 16 days after the pus, more consideration of trauma secondary infection, wound pseudo-healing and so on. 1. trauma secondary infection: due to the complexity of hemorrhoidal fistula surgery, postoperative trauma is larger, vulnerable to feces, urine, intestinal fluids and other stimulus infection, and then the formation of inflammation and infection, resulting in the phenomenon of trauma 16 days also pus, local can be manifested as red, swollen, hot and painful, affecting the trauma of the normal recovery. It is generally recommended that the postoperative wound should be cleaned and changed at regular intervals, and the anus must be cleaned after defecation, and then warm water or potassium permanganate solution sitz bath. 2. Wound pseudo-healing: the situation is a common complication after anal fistula surgery, due to deeper surgical wounds, the operation did not thoroughly clear the pus cavity, resulting in part of the infection foci, pus residue, the wound formed pseudo-healing, local abscess pus formation can flow out. After the hemorrhoid fistula surgery, such as wound pus and other abnormal manifestations, it is recommended to go to the hospital in time to check, clarify the cause of the disease, follow the doctor’s instructions to give reasonable treatment, to avoid delaying the condition.