Three months baby diarrhea can be considered to be caused by gastrointestinal inflammation, improper diet, abdominal cold, etc. Specific conditions specific treatment, can be improved through dietary modification, warmth, medication and so on. It is recommended to check the feces in time, there is no bacterial infection, exclude lactose intolerance caused by diarrhea. 1. Gastrointestinal inflammation: intestinal infections can easily cause gastrointestinal inflammation, diarrhea, vomiting and abdominal pain and other manifestations, you can follow the doctor’s instructions to take montelukast to stop the diarrhea, diarrhea is more serious, easy to dehydration, you can replenish some oral rehydration salts, the specific use of medication to follow the doctor’s instructions. 2. Improper diet: excessive diet can easily lead to digestive disorders, diarrhea symptoms can be adjusted diet, under the guidance of the doctor to take probiotics such as bacillus subtilis bacillus and other intestinal regulating drugs. 3. Cold abdomen: cold weather, the stomach is exposed to the outside of the abdomen is easy to get cold, will lead to diarrhea, should pay attention to do a good job of warm work, you can use a hot water bag hot compresses on the abdomen, in order to alleviate the symptoms of diarrhea. Three months baby diarrhea more causes, in addition to the above reasons, may also be caused by other factors, it is recommended to check the stool in a timely manner, there is no bacterial infection, to exclude lactose intolerance caused by diarrhea, to the professional hospital for treatment, to avoid leading to other complications.