Black dots in baby’s poop are commonly caused by indigestion, upper gastrointestinal bleeding or dietary factors. 1. indigestion: greasy high-fat food eat too much, gastric power is not enough, the food in the intestinal tract retention time is too long, feces in the water is repeatedly absorbed, resulting in constipation, caused by the phenomenon of black dots in the stool. 2. Upper gastrointestinal bleeding: children with peptic ulcer and other diseases lead to upper gastrointestinal bleeding, blood in the intestines for a long time, so that the baby stools appear black spots. 3. Dietary factors: eating bananas, kiwis and other fruits, black dots or filaments in the stool, is a normal phenomenon. This is because the fiber in bananas is oxidized by the intestines. There may be other reasons for the black dots in the baby’s stool, so it is recommended to go to the hospital in time to improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment under the guidance of the doctor.