Biting is quite common among toddlers and is a very normal reaction for this age group. Children bite for many reasons. Sometimes they are teething and the biting feels good. Others seem to enjoy the strong reaction they get. Sometimes it starts out as a kiss and just goes too far. Most of the time, though, biting occurs because a child is frustrated and does not know what else to do. For example, the activity may be too difficult for the child. Or there may be too many children for the child to deal with. Or the child may be angry because someone tried to take a toy away. Because the child has not yet learned appropriate words or actions to express his frustration, he resorts to biting.