2-year-old baby many times a day stools often exist diarrhea, can be seen in infectious diarrhea, non-infectious diarrhea (such as bait diarrhea, etc.). 1. infectious diarrhea: such as rotavirus enteritis, caused by rotavirus infection, the clinical may appear many times a day to solve the stool, the number of bowel movements than the daily significantly increased, may appear egg-shaped stool, may be accompanied by fever, vomiting symptoms, severe cases may appear depressed, urinary and other signs of dehydration. 2. Non-infectious diarrhea: (1) Food-baiting diarrhea: mostly due to improper diet, gastrointestinal dysfunction, the above phenomenon can occur, usually the symptoms are mild, and can be gradually relieved after adjusting the diet as appropriate. (2) Symptomatic diarrhea: the baby is in a state of illness, such as acute upper respiratory tract infection, may also appear to increase the number of stool phenomenon, need to actively treat the primary disease, reasonable diet, increase the intake of water. (3) lactose intolerance: such as due to a variety of reasons the lack of lactase in the intestinal tract, eating lactose-containing food can be due to lactose intolerance of the above phenomenon. 2-year-old baby stools many times a day, there may also 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.