Two months after the anal fistula surgery wound bulge bleeding, may be related to trauma, local infection, anal fistula recurrence and other conditions. 1. Trauma: Although two months have passed since the anal fistula surgery, the skin at the site of the wound is new and relatively delicate. If you wipe the anus with force after bowel movement, it may cause the skin in the area to be damaged, resulting in bulging and bleeding. 2. Local infection: If the site of the wound, coupled with the invasion of urine and feces, will lead to secondary infection of the surgical site, causing local pus discharge, bleeding and stinging pain and other phenomena. 3. anal fistula recurrence: although the anal fistula surgical treatment, if you do not pay more attention to adjust their dietary habits after surgery, it is very likely to recur. The recurrence of anal fistula manifests itself in the anal area with abscesses, anal wetness, itching and other symptoms. Two months after the anal fistula surgery wound bulge bleeding, it is recommended that the patient should be timely medical, systematic examination, a clear diagnosis, follow the doctor’s instructions and active treatment.