During the acute phase of a perianal abscess, patients experience significant local redness, swelling, heat, and pain around the anus. The pain is severe and in some cases, patients are unable to sit or walk normally due to the discomfort. During this acute phase, the swelling of the skin around the anus can easily be confused with skin carbuncles, leading patients to mistakenly visit a dermatologist. However, a perianal abscess is a local anal disease that requires registration with a colorectal surgery department, as it is not merely a skin carbuncle but an infection caused by an infection at the anal crypts inside the anal canal. This necessitates prompt surgical incision and drainage, and, if a fistula has formed, a fistulotomy may also be necessary.