If a fissure is visible to the naked eye at the anal sphincter during a digital rectal examination, it is primarily considered an anal fissure. Anal fissures generally cause severe local pain and bleeding from the fissure. The fissure is primarily due to the local crack being stretched or opened, causing bleeding from small blood vessels, and the blood from the fissure is usually bright red. To treat bleeding from an anal fissure, it is first necessary to soften the stool, as the occurrence of an anal fissure is mainly related to dry stools and difficulty defecating. Once the stool is lubricated, it can reduce the need to exert excessive force during defecation, lowering the possibility of stretching the local fissure. Topical application of hemorrhoid cream at the fissure, or combined with oral medications that cool the blood and stop bleeding, may be used. If there is repeated bleeding from an anal fissure, surgical treatment is also recommended. (Please use medications under the guidance of a professional physician, and do not self-medicate.)