If a false healing of the wound occurs after local surgical excision of an anal fistula, it is mainly due to improper dressing changes by the patient and a lack of timely observation of the local wound. It is recommended to open the superficially healed wound to allow it to regrow. In particular, the patient needs to change the dressing and observe the wound daily to prevent the situation where the internal part of the wound has not healed, but the external opening appears healed. During dressing changes, hemorrhoid creams and other drugs that promote mucosal healing can also be applied locally and inside the anal canal to further promote the healing of the internal opening. Only when the internal opening has fully grown should treatment that promotes healing of the external opening be applied. (Please use medication under the guidance of a professional physician, and do not self-medicate.)