Babies are prone to diarrhea in summer, which may be caused by physiological reasons, such as drinking ice-cold drinks. It may also be pathologic causes, such as indigestion, bacterial reproduction, etc.. 1. Physiological reasons: the summer weather is hot, if you give your baby chilled drinks, the stomach and intestines will be stimulated and diarrhea may occur. 2. Pathologic causes: (1) indigestion: the baby’s gastrointestinal tract and adults in a variety of digestive enzymes compared to the secretion of a lot less, which does not help the digestion of food, easily triggered by indigestion, and then diarrhea is also easy to appear. (2) bacterial reproduction: summer temperature is high, bacteria are easy to reproduce, the possibility of infection will increase, the child if the bacteria invade the body, into the gastrointestinal tract, it is easy to lead to the occurrence of diarrhea. Babies are prone to diarrhea in the summer, there may be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.