Constipation with dark stools may be caused by eating too much blood products, feces staying in the body for too long, and upper gastrointestinal bleeding. It can be improved by general treatment or medication measures.
1. Eating too much blood products: such as duck blood, blood sausage, etc. is rich in iron, in the intestinal tract too much accumulation can not be fully absorbed, will lead to black stool color. You should pay attention to your diet and avoid eating too much blood products.
2. Feces stay in the body for too long: constipation leads to accumulation of feces in the intestines, or feces is too dry, friction stimulation of the intestinal mucosa caused by a small amount of bleeding, resulting in black feces. You should eat more food rich in dietary fiber and take laxative drugs such as lactulose and polyethylene glycol under doctor’s guidance.
3. Upper gastrointestinal bleeding: Upper gastrointestinal bleeding leads to gastrointestinal hypoperfusion, which slows down intestinal peristalsis and causes constipation and black stools. You should take treatment in time, take medicines to stop bleeding, inhibit gastric acid or perform surgery to stop bleeding.
Stool abnormalities should be promptly examined in the hospital to clarify the cause of the disease, so as not to delay the condition.