There are two reasons for recurrence after anal fistula surgery: first, incomplete surgery; second, reinfection. The purpose of fistula surgery is to cut open fistulas and fistulae for treatment, and some fistula symptoms can show two or more fistulas. If fistulas are not completely removed during fistula surgery, residual fistulas can easily become infected with bacteria and become septic again, thus causing the possibility of fistula recurrence. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things.