Children love to bite for the following reasons: 1, teething, small children like to bite, probably because to the teething period, itchy gums, need to chew on hard things to grind gums to relieve this itch. 2, imitation, if parents because the baby is cute, often bite the baby’s small hands, arms, feet, the baby will learn to do so, or baby contact with children love to bite, the baby will also learn to bite. 3, a special way to express emotions, small babies lack of language, can not use language to express their inner feelings, through the bite way to express. 4, venting emotions, some children bite because children lack of security, will be a way to satisfy themselves, such as parents usually accompany the child less, in order to get the teacher’s attention in kindergarten, will be obtained through biting, beating.