Generally speaking, the causes of vomiting and diarrhea in young children mainly include the following: 1, caused by children with acute gastroenteritis, in children infected with viruses or bacteria after suffering from acute gastroenteritis, at this time the children will vomit, diarrhea, crying and restlessness, and even fever, to the children’s stool routine is often positive for rotavirus or the presence of pus cells, red blood cells. 2, caused by children’s indigestion, the children’s indigestion is also sometimes caused. Young children suffering from indigestion can sometimes cause vomiting, diarrhea, and children’s tongue is very thick and greasy, the mouth has a sour and rotten taste, there is often undigested food or milk petals in the stool.