If a two-year-old baby has diarrhea, it may be related to the diet and environment. Observe the baby closely and then treat according to the cause. 1. Diet, if the baby ate too much too full may lead to indigestion and diarrhea, at this time should be appropriate to feed less to reduce the burden on the baby’s gastrointestinal tract, if necessary, take drugs to help digestion, such as compound pepsin powder. 2. If the baby long-term diarrhea, consider the intestinal flora disorders, you can give the baby appropriate probiotics such as bifidobacteria to mediate the intestinal flora. 3. If the baby after diarrhea appeared tired, no spirit, fever, stool inside the mucus or even pus and blood, etc., need to be alert to enteritis and dysentery and other diseases, oral rehydration salts to prevent dehydration, to avoid the occurrence of electrolyte disorders, and further medical identification of the cause of formal treatment. It is recommended that the two-year-old baby diarrhea timely medical treatment, active treatment. The above drugs should be used in accordance with medical advice.