Blood coming out of the anus is called bleeding in the stool, commonly known as blood in the stool. It mainly includes blood dripping, squirting or blood in the stool. Generally speaking, blood in the stool that is visible to the naked eye indicates bleeding from the lower gastrointestinal tract (especially the colon and rectum). The closer the bleeding site is to the anus, the brighter and redder it is, which means that perianal disease is the most common. What should I do if I have bleeding hemorrhoids? People generally believe that bleeding stools are due to hemorrhoids, which is incorrect. Hemorrhoids, especially first- and second-stage internal hemorrhoids, tend to have bleeding as their main symptom. The blood in the stool usually occurs during defecation, dripping or jet-like bleeding during and after the stool, and the blood does not mix with the stool. The amount of bleeding varies from a few milliliters to tens of milliliters. Repeated bleeding can lead to severe anemia. Hemorrhoids are relatively easy to diagnose, but it is important to note here that anorectal diseases with symptoms of blood in the stool, such as rectal adenoma and rectal cancer, are often misdiagnosed clinically as internal hemorrhoids. Therefore, other diseases must be excluded when determining the diagnosis of hemorrhoids. Routine finger examination of patients with blood in the stool is necessary, and a convenient, economical, safe and accurate method of routine examination using a disposable proctoscope or anoscope examination mirror. Blood in stool is generally divided into fresh blood stool, tarry stool and occult blood stool, and the common causes of fecal bleeding are described below. 1, fresh blood stool: generally from the lower ileum, colon, rectum, anus, stool color bright red or dark red, can be mixed with mucus and pus blood. Common diseases are: hemorrhoids, anal fissure bleeding. Hemorrhoids bleeding in stool with jet-like outflow or dripping blood after stool; anal fissure bleeding in stool in small amount, but with more intense anal pain. Rectal polyp bleeding, blood in stool is not large, blood is attached to the surface of the stool, sometimes the stool becomes thin and streaky or there are pressure marks. Dysentery blood in stool in the form of pus and blood, more stools, with left lower abdominal pain. 2, tar-like stool: that is, black stool. Upper gastrointestinal bleeding is not vomited, blood in the intestine for a longer period of time, the hemoglobin in the blood and intestinal sulfide combined into ferrous sulfide, ferrous sulfide makes the stool black and shiny, like tar. The presence of tarry stools indicates that the amount of bleeding has reached 60 ml or more. But pay attention to certain foods, drugs can make the stool black, with stool occult blood test can be identified. 3, occult blood stool: where a small amount of gastrointestinal bleeding does not cause a change in the color of the stool, only in the laboratory stool occult blood test positive, called occult blood stool. All diseases that cause gastrointestinal bleeding can occur occult blood stool, common gastric ulcer, gastric cancer. The treatment for blood in the stool is basically the same as that for vomiting blood. Quietly lie in bed, reduce activity, observe the amount of bleeding, use appropriate hemostatic drugs, and send to hospital for emergency treatment in case of fainting or shock.