Black stool is black stool, black stool may be physiological or pathological, in addition to drug factors can also lead to black stool.
1. Physiological black stools: mostly caused by eating colored food, such as eating pig liver, animal blood, purple cabbage, spinach, chocolate, mulberry, etc. If the black stools are caused by eating these foods, they are generally normal.
2. Pathological black stools: most commonly seen in gastric and duodenal ulcers, upper gastrointestinal tumor rupture bleeding to the esophagus, gastric fundus varices rupture bleeding and so on. Prompt medical treatment is needed to stop bleeding and protect the stomach.
3. Black stool caused by medication factors: patients eating bismuth citrate or taking some iron can appear black stool, this situation will generally return to normal after stopping the drug.
If you have black stools, you need to consult a doctor in time to find out the cause and do not delay the condition.