Gastrointestinal bleeding is eliminated through the intestines with blood in the feces or whole blood stools, which can be bright red, dark red and tarry in color. The color of the bloody stool depends on the location of the bleeding, the amount of bleeding, and how long the blood stays in the GI tract. Bleeding in the lower gastrointestinal tract (small intestine, colon, rectum, anus) often results in bright or dark red stools. Upper gastrointestinal tract (esophagus, stomach, duodenum) bleeding, stools are often tarry. 1, the cause of blood in the stool is generally divided into fresh blood stool, tarry stool and occult blood stool, now the common causes are described as follows. Puyang City Hospital of Traditional Chinese Medicine Anus and Intestines Gui Zhaowang 1) blood stool generally from the lower end of the ileum, colon, rectum, anus, stool color bright red or dark red, can be mixed with mucus and pus and blood. Common diseases are: hemorrhoids, anal fissure bleeding. Hemorrhoids blood in the stool during defecation jet-like outflow or blood dripping after defecation; anal fissure blood in the stool is small, but the anal pain is more intense. Rectal polyp bleeding, the amount of blood in the stool is not large, the blood is attached to the surface of the stool, sometimes the feces become thin and streaky or have pressure marks. Dysentery blood in the stool is pus and blood, stool more often, accompanied by left lower abdominal pain. (2) tarry stools i.e. black stools. Upper gastrointestinal bleeding is not vomited, the blood stays in the intestines for a long time, the hemoglobin in the blood combines with the sulfide in the intestines to form ferrous sulfide, and the ferrous sulfide makes the stool black and shiny, like tar. The presence of tarry stools indicates that the amount of bleeding has reached 60 milliliters or more. However, it is important to note that certain foods and medications can make the stool black, and the fecal occult blood test can be used to identify this. (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 is positive, known as occult blood stool. All the diseases that cause gastrointestinal bleeding can occur occult blood stool, common gastric ulcer, gastric cancer. 2, rescue measures The rescue measures are basically the same as vomiting blood. The measures are basically the same as those for vomiting blood. Stay in bed quietly, reduce activities, observe the amount of bleeding, use hemostatic drugs appropriately, and send the patient to the hospital for emergency treatment in case of fainting or shock. The blood in the stool is internal hemorrhoids? Blood in the stool is a typical symptom of internal hemorrhoids, especially early internal hemorrhoids, but you can’t assume that blood in the stool is internal hemorrhoids. Blood in the stool is a common symptom, clinical many diseases, can cause blood in the stool. (1) all kinds of enteritis: due to inflammation, destroying the integrity of the intestinal mucosa, appearing in the stool mixed with dark purple blood, secretion, and accompanied by all kinds of enteritis specific symptoms. (2) anal papillitis and its hypertrophy: on the dentate line, the surface is covered with anal canal epithelium, and bleeding is occasionally seen. (3) Anal fissure: severe pain during defecation and blood dripping after defecation. (4) Rectal cancer: there is bleeding and large amount of secretion, which is most likely to be misdiagnosed and missed. During hand diagnosis, the finger cuffs can be stained with blood, and hard lesions with different shapes, rough and uneven surface and uneven edges can be reached, which need to be biopsied for pathology to confirm the diagnosis. Bleeding of the disease can also cause anemia. (5) Rectal adenoma or villous papilloma: the disease often bleeds, with blood on the feces during each bowel movement, and occasionally there is a lot of bleeding. However, the tumor is long and tibial. On anoscopy, the tumor is visible in the rectum, red in color, and may be tibial.