Babies always have diarrhea need to identify the cause, may be physiological, may also be pathological; physiological causes need to adjust the lifestyle, pathologically caused by the need for targeted treatment under the guidance of a doctor, such as drug therapy. 1. Physiological: children with disaccharide intolerance can suffer from diarrhea when consuming diets containing disaccharide (including lactose, sucrose and maltose), of which lactose intolerance is the most common, and attention should be paid to reducing the load of disaccharide in the diet, such as the use of lactose-free milk substitutes or de-lactose formulas. 2. Pathological: various bacterial or viral infections of the digestive system caused by gastroenteritis, such as the lack of treatment can also cause baby diarrhea has been bad phenomenon. Consider the use of digestive drugs, such as compound lactobacillus acidophilus and other probiotics; if the diarrhea is serious, you can eat montelukast. Bacterial infections can be based on drug sensitivity oral antibacterial drugs such as cefixime, viral infections do not require special treatment. The causes of baby diarrhea are many, do not rule out indigestion and other factors. Parents are advised to bring their babies to the doctor in a timely manner, by the doctor to clarify the cause, give targeted treatment, do not blindly give the baby drugs. The above medications should be used in accordance with medical advice.