Perianal abscess and hemorrhoids are two different types of common anorectal diseases. When a perianal abscess occurs, the onset is generally sudden and there is severe pain in the anal area. Under the skin of the anal area or inside the anal canal, a submucosal abscess forms, encapsulating pus. Surgical treatment is required as soon as possible to prevent further spread of the abscess cavity. Hemorrhoids, on the other hand, are caused by the long-term and repeated accumulation of local tissues in the anal area, leading to the formation of blood clots or varicose vein masses. These generally occur near or around the dentate line, and may also be accompanied by skin tags of external hemorrhoids.