It is believed that every patient who is going to have anal surgery has some common concerns about what should be paid attention to on the day of surgery. According to years of observation and summary, we have the following experience for your reference. Before surgery, it is generally advocated to empty the bowels, and if you are often constipated, you should take an enema (500ml of cork or warm saline) 1 hour before surgery to ensure the relative cleanliness of the anorectal area for surgery. For patients under epidural anesthesia or general anesthesia, it is also advocated that they should not eat before and 6 hours after surgery, and should not move around for 6 hours after surgery; for patients under local anesthesia, it is not required to fast before surgery, and it is not advocated to get out of bed within 3 hours after surgery, nor to urinate within 3 hours to prevent postural hypotension caused by anesthesia due to premature activity. Since anorectal surgery is an open incision, a small amount of postoperative bleeding is inevitable. Patients should apply pressure for 30 minutes (can be done with the help of family members or medical staff) to prevent local bleeding. The perianal nerves are rich and postoperative pain cannot be completely avoided, and there will be some pain after the anesthesia medicine expires. A few patients who are intolerant to pain can be treated with daily morning and evening long-acting analgesia. From clinical observation, anal fistula and perianal abscess are less likely to spasm after surgery because part of the anal sphincter is cut off, so the postoperative pain is lighter instead; patients with hemorrhoids or anal fissures have relatively obvious pain because they have not damaged the anal sphincter and the postoperative spasm of the sphincter is caused by the stimulation of the trauma. Regardless of the type of pain, the pain is quickly relieved as the trauma grows and fresh granulation covers the nerve endings. Generally, patients with local anesthesia can get out of bed 3 hours after surgery and can urinate. Individuals also have the feeling of urinating for a while after surgery, which is mainly due to the fact that the anal sphincter and urethral sphincter are innervated by the same nerve. When the anal spasm is painful, the urethral sphincter will also spasm, so there will be poor urination. If the patient has a history of diarrhea, the surgery should be performed after the diarrhea has been controlled, otherwise, frequent fecal stimulation of the anus will increase the local burden and cause local edema due to repeated squatting, which is not good for recovery. On the night of surgery, the patient should rest early to avoid disturbance. Except for the elderly and frail or patients with serious conditions who need a bed companion, the majority of patients do not need a bed companion.