Why is my kid biting other kids?

What the evidence says

Biting is a normal, very common part of toddler development, not a discipline failure. Young children often bite because they don't yet have the words to express big feelings like anger, frustration, excitement, or the need for space, and their brains are still learning to manage emotions and impulses.

Common reasons toddlers bite include: frustration when they can't get a toy or communicate a need, teething discomfort, sensory overload in busy environments (like daycare), curiosity about cause and effect ('if I bite, what happens?'), and sometimes plain impulsiveness since self-control is still developing at this age.

Experts note that punishing or shaming a child for biting, or labeling them 'a biter,' tends to make things worse rather than better. What helps more is staying calm, firmly saying biting hurts, giving attention to the child who was bitten, and teaching the child words or strategies to use instead (like asking for space or a turn with a toy).

If biting is frequent, intense, continues past age 4-5, or comes with other worrying signs (like lack of language progress or extreme aggression), it's worth mentioning to your pediatrician, who can check for underlying developmental or emotional concerns.