3 year old baby is always a little bit may and indigestion and so on related, such as eat too much cold food, diet more spicy and so on, this is not normal phenomenon. 3-year-old baby is always a little bit of stool, may and intestinal indigestion and other factors, such as the baby recently consumed too much cold and greasy stimulation of food, but also may and diet overeating, did not pay attention to a balanced diet with other factors, such as intake of vegetables and fruits is relatively small, may lead to the above situation. This is an abnormal phenomenon. Therefore, if your baby has the above condition, you need to adjust your diet, avoid getting cold and drink water appropriately, etc. At the same time, you need to go to the hospital for a routine stool examination and actively cooperate with the treatment according to the results.