"Additionally, nail biting can damage the skin around the nails and cause pain and swelling of the fingers. This can cause ...

Occasional nail-biting during stressful situations was considered ... to genetics or learned behaviour from watching me gnaw on my fingers. Two of them bite their cuticles; one makes knots in ...

One individual unintentionally encouraging bad behavior — dog-biting feet, legs, hands, or fingers — can undermine everyone’s ...