Pus flows after perianal abscess surgery in about half a month to a month or so. Depending on the severity of the abscess, postoperative recovery, personal immunity and other different circumstances, the state of recovery is different for each person. Most of the perianal abscesses are treated completely by incision and drainage of the perianal abscess, or by incision and drainage combined with hanging together. After the operation of perianal abscess, the abscess cavity is open, the pus will drain slowly, it is impossible to remove completely at once, the residual pus and some necrotic tissues are also gradually discharged from the abscess cavity, after a period of time, the granulation tissue generated to fill the pus cavity, the trauma is considered to be fully recovered after the restoration of the wound. Pus discharge will last about half a month to a month or so, subject to the severity of the disease, and postoperative care recovery and other factors, so during this recovery period to avoid poor drainage, wound re-infection, false healing, etc., affecting the normal recovery of the disease, so after the operation to keep the local hygiene dry and clean, adjusting dietary habits, changing medication, re-examination, and so on. It is recommended that after perianal abscess surgery, patients actively cooperate with the doctor’s instructions, so that the postoperative wound smooth healing recovery, to avoid recurrence.