If children often bite, mainly consider the following reasons caused by the following: 1, emotions do not know how to express, because the child is relatively young, most of this situation is seen in children under three years old, this age does not know how to express, speech is not very clear, if the child does not express, there will be tantrums, biting situation. For this situation, parents can give the child psychological guidance, so that the child the correct way of expression, such as gently pulling the adult’s hand, finger pointing things, etc., and other expressions established after the child biting situation will be alleviated. 2, tooth inflammation, some children, especially young children, often in the teething period will appear to bite the situation, is due to inflammation of the gums. When the child’s teeth erupt and the gum inflammation is relieved, the biting situation will also be slowly relieved and disappear.