Chocolate-colored pasty stool is usually normal if there is a clear history of eating animal blood, iron and other dietary medications; if there is no history of related dietary medications, then it is not normal and may be due to gastrointestinal bleeding, which needs to be paid attention to, and it is recommended to consult a doctor as soon as possible for a clear examination. Chocolate-colored stool paste may be related to diet. If you have eaten iron-containing foods or medications in the last 1-2 days, such as pig’s blood, duck’s blood, animal liver and iron-supplemented preparations, the color of the stool will change, and it may be in the form of chocolate paste. In this case, there is a clear history of dietary medication, and the stool color may return to normal after discontinuing the medication or diet in question. If the patient does not have a history of such dietary use, chocolate-colored stools are usually abnormal and bleeding in the gastrointestinal tract may be considered. If the patient has gastric ulcer or duodenal ulcer, followed by gastric bleeding, or bleeding from inflammation of the intestinal tract, the color of the stool may be chocolate, coffee, black, etc., and may be paste-like. When chocolate-colored paste-like stools occur, it is recommended to consult a doctor for routine stool examination. If the stool is positive for occult blood, it is generally considered to be gastrointestinal bleeding, and further gastroscopy and enteroscopy are needed to make a clear diagnosis.