If you have black stools after giving birth, see if there are any dietary or medication effects. Usually taking blood supplements containing iron, or eating foods such as spinach and animal liver can also lead to black colored stools, all of which are normal pigment components. If there is a history of gastrointestinal diseases, such as chronic gastritis, gastric mucosal erosion, peptic ulcer, black stools due to gastrointestinal bleeding may also occur. The process of labor is a stressful one, which may aggravate digestive disorders, and a fecal occult blood test can be done to confirm the diagnosis. The cause of the disease is determined by the clinical symptoms. For gastrointestinal hemorrhagic disease, according to the severity of the disease to do targeted treatment. The diet should be light and easy to digest, and if you are breastfeeding, you should pay attention to a balanced combination of nutrients.