The signs that the anal fistula surgical band is about to fall off are generally manifested as less pain when pulling the band, less secretion, and the appearance of a large number of granules on the wound. 1. Pulling the bandage when the pain is light: anal fistula surgery will be cut to drain the fistula, there will be a fresh wound after surgery, which will cause pain. With the active care after surgery, the wound will gradually heal, when pulling the bandage will not feel severe pain. 2. Decrease in secretion: after surgery, the wound tissue will proliferate and repair, and there will be secretion during the metabolism of the skin tissue, and as the wound heals, the secretion will gradually decrease, and the skin band will fall off by itself. 3. The wound appears a lot of granulation: generally indicates that the recovery after surgery is good, the wound in the gradual growth of new skin tissue, the band will slowly become loose, and finally fall off by itself. Anal fistula surgery skin band is falling off, to the hospital on time to check, change the medicine can be observed whether the skin band is falling off soon, you can communicate with the doctor to consult, to understand the postoperative recovery situation.