The time of placing the drain strip after perianal abscess depends on the wound condition, generally need to be plugged for 3-7 days. 1. Postoperative wound exudates a lot of secretion on the drainage strip, this situation, generally need to plug about 7 days, should be changed every day, pull out the drainage strip and gauze to disinfect the wound and replace the placement of new drainage strip and gauze. 2. If the wound is dry and the drainage strip is clean with less secretion after the operation, in this case, it is usually inserted for 3-5 days, and you can change the medicine every 2-3 days and replace the drainage strip and gauze with a new one. Perianal abscess is a perirectal abscess, which is an abscess formed by bacterial infection in the perirectal space or anal canal tissue. Most perianal abscesses form an anal fistula after rupture. Surgical drainage should be performed when the abscess forms to prevent the formation of sinus tracts and fistulas. Drainage strips are placed after surgery for perianal abscesses in order to drain the secretions from the wound in time to prevent the formation of abscesses, and to prevent the outer epidermis from healing while the inner cavity has not yet healed. Depending on the condition of the wound, the time for placing the drain is different. It is important to note that if there are any abnormalities such as excessive secretion after placing a drain after perianal abscess surgery, you should go to the hospital in time to deal with them, and not to deal with them on your own to avoid the wound becoming infected.