Patient: Description of the condition (onset time, main symptoms, hospital visited, etc.): The patient is male, 20 years old, suffered from perianal abscess in June this year, and now there are precursors of recurrence, and there is vague pain at the anus, which was treated with infusion in June. What should I do to prevent it in the future? What do I need to pay attention to in my life? The first step is to remove the abscess from the anus, and then the fistula will be formed after the surgery, and then the fistula will be excised.