Red poop in one year old babies may be caused by diet, digestive disorders and other reasons. 1. Diet: One-year-old babies will have red stools if they ingest foods such as red dragon fruit and red amaranth. It is a normal phenomenon, no special treatment is needed, and the color of the stool will return to normal after changing the diet. 2. Digestive system diseases: For example, gastrointestinal bleeding caused by gastrointestinal ulcers and other diseases may appear red stools, accompanied by abdominal pain, diarrhea and other symptoms. Parents need to take their children to the hospital. One year old baby poop red may also be due to other reasons, it is recommended that parents take their children to the doctor, follow the doctor’s instructions for treatment.