Symptoms of internal heat in babies are often manifested in the oral cavity, sleep, defecation and behavior in a number of aspects, it is best to seek medical treatment in a timely manner, do not use medication without authorization. 1. Oral cavity: baby internal heat often appear bad breath, mouth ulcers, yellow tongue, etc., may be improper diet or food accumulation, need to adults to improve feeding methods, more to the baby drink some water, green bean soup, etc.. 2. Sleep: babies often sleep because of internal heat and easy to wake up, clenching teeth, non-stop flopping and other manifestations, it is best to remove the fire through therapeutic food, such as a light diet, eat less sweets and spicy stimulating food, and so on. 3. Defecation: such as dry stools, small amount of yellow urine, etc., the baby is often dry and hard stools and delay defecation, resulting in more difficult to pass stools, the child should be allowed to drink more water, stools do not come out of the need to seek medical treatment. 4. Behavior: infants are often difficult to clearly express their own discomfort due to internal heat, only through some behavioral actions to attract the attention of adults, such as mouth and tongue sores caused by pain, the baby may suddenly reluctant to eat, often crying, irritability, irritability, etc., need to carefully find the cause of adults. If the child’s symptoms are more serious, should seek medical treatment.