After perianal abscess surgery, the wound discharges yellow mucus, in addition to the normal wound secretion, mostly consider the pus produced by postoperative infection. It is recommended that the patient should be treated with routine dressing change and anti-infective drugs (e.g. ceftazidime) after clarifying the cause of the disease. 1. Wound secretion: after perianal abscess surgery, the pus cavity is connected with the outside world, and the stored pus will secrete and ooze out with the incision. Daily attention to regular daily wound cleaning, disinfection and dressing change, keep the perianal area clean and clean, the secretion will gradually reduce and disappear. 2. Traumatic infection: as perianal abscess is an infectious disease, poor drainage will infect other tissues: in addition, stimulated by feces and other stimuli, local bacterial growth, resulting in infection, traumatic pus generation. It is generally recommended that the patient observe the changes in the wound when changing the dressing every day, and follow the doctor’s instructions to give ceftazidime, metronidazole and other antibiotic treatment if necessary. It is recommended that patients with the above discomfort, timely review in the hospital, to clarify the cause of the disease, listen to the advice of a professional doctor, and actively cooperate with the treatment, so that the postoperative trauma normal recovery.