Biting other people is common in children ages 3 and younger. It becomes a problem if it happens frequently, occurs after age 3, injures others, or occurs with other aggressive behaviors.
A baby who is teething may bite in response to the sensation in the mouth or to relieve the pressure on the gums. Children may also bite as a way to cope with strong emotions—such as powerlessness, fear, or frustration—because they lack the social and language skills to express these feelings appropriately.
Usually, a firm "no" and stern expression will stop a child from biting. Children who bite frequently, especially if age 3 or older, should be evaluated by a doctor.
Not all biting can be prevented. What you can do to reduce biting depends on how old your child is and why your child bites. For example:
Learn to recognize the signs that your child is about to bite. You may be able to stop the biting before it happens if you can distract or redirect your child. Don't try to reason with young children or have long talks about biting. Use simple and direct language.
Positive reinforcement also helps. Praise your child when your child shows behaviors that you want to encourage, such as sharing, being kind, or being patient. A reward can be as simple as giving your child a hug or a pat on the back and telling the child how well they are doing.
Be sure to model the behavior you would like to see in your child. Avoid angry outbursts, and set a good example by showing your child how to deal calmly with everyday frustrations. When a child bites:
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