Baby stool like water jet out is caused by diarrhea, and intestinal dysfunction, indigestion, cold, bacterial infections and other factors related to the following: 1, the baby appears intestinal dysfunction, will be manifested as bloating, burping, diarrhea and some other performance, if the symptoms of diarrhea is more serious will appear watery stool, if the pull out faster will be manifested as jet-like. 2, indigestion is a chronic easy to The patient mainly shows pain in the upper abdomen, nausea, vomiting, loss of appetite, stimulating food intake will lead to rapid peristalsis of the gastrointestinal tract, so it is also easy to appear jet-like watery stool. 3, in the weather gradually become cooler, should pay attention to the baby’s cold, warmth, the abdomen is cold will lead to rapid peristalsis of the gastrointestinal tract, resulting in watery stool jet out. 4, viral bacterial infection, especially Rotavirus infection is prone to watery or egg-like stools, should be treated in a timely manner to prevent baby dehydration.