The primary treatment method for anal fistulas is surgery, which mainly involves the use of a local seton thread. This method allows the surgeons to excise or remove the affected area of the anal fistula while preserving the normal contractile function of the local anal sphincter. This precaution helps prevent excessive removal that could lead to sphincter relaxation or excessive loosening of the anus. As the local sphincter naturally repairs itself and the seton falls out post-surgery, it ensures the proper healing of the local wound. Postoperative care for anal fistula surgery also involves proper drainage and disinfection of the local wound. Daily application of oil gauze and changing of anti-inflammatory medications on the local wound are recommended. This helps in reducing inflammation and facilitating drainage, thereby preventing the occurrence of local pseudohealing.