The postoperative healing time of perianal abscess depends on the size of the lesion, the surgical method, the scope of intraoperative excision and other factors, ranging from 2-4 weeks to 2-3 months. If the perianal abscess is small in size, it can be treated by incision and drainage, and the healing time after surgery is short, and it can be healed in 2 weeks with continuous drug changes. If the patient is old and weak, combined with diabetes, blood diseases, tuberculosis, malnutrition or anemia, the healing time can be more than 2-3 months, which is a delayed wound healing. In addition, patients need to take a sitz bath with potassium permanganate solution every day after surgery, change medicine and clean the wound every day, supplement vitamin-rich and high-quality protein food, forbid spicy and greasy food, keep bowel movement smooth, and pay attention to rest at the same time.