Anal abscess, also called perianal abscess, is a disease that requires surgery to cure. Perianal abscess is caused by the presence of a primary internal opening near the anal sinus, from which pathogenic bacteria enter. Generally, after a spicy diet, alcohol consumption, or diarrhea, the internal opening is easily opened and pathogenic bacteria enter, leading to septic infection of the perianal fat, which is particularly painful and progresses particularly rapidly, usually accompanied by fever and other systemic symptoms, and requires surgery as soon as possible. Nowadays, the problem can generally be solved by one-time radical surgery of anal abscess, which requires cutting open the abscess, then drawing out the pus and treating the internal opening, and the disease will not recur.