Perianal abscess is an infectious disease of the local skin and tissues around the anus caused by an infection in the anal crypts. If a perianal abscess is not treated with a definitive one-time surgical intervention, it is very likely to recur, or after rupture of the abscess, to form an anal fistula with long-term intermittent discharge of pus from an external opening. Therefore, during the acute phase of a perianal abscess, once a distinct abscess cavity and pus formation occurs, it is necessary to promptly perform a one-time definitive surgical treatment of the perianal abscess, rather than choosing conservative medication treatment or simple incision and drainage. The above treatments only temporarily alleviate symptoms of a perianal abscess; only a one-time definitive surgery that completely cleans the local wound can result in the complete healing of the perianal abscess.