Nail biting, artificial nails, or injury usually cause acute hangnail in fections. Children are particularly prone to acute nail infections due to sucking their fingers and biting their nails.

This also affects jaw and palate development, resulting in speech difficulties. Infections: Nail biting predisposes the nail beds to bacterial infections and may introduce harmful germs into the mouth ...

Nail biting can also cause ingrown nails, temporomandibular joint pain and dysfunction, and may harm one's teeth through chipping or misalignment issues. Why do people bite their nails?

From managing compulsions to nail strengthening, two experts explain the harm of nail biting and what to do when trying to stop.

It can occur when the protective barriers around your fingernails or toenails are breached due to an injury, an ingrown toenail, even from biting your nails or cuticles.

This research may offer relief for people with repetitive body-focused behaviors — such as skin picking and hairpulling — that can affect their mental health.

Paronychia is an infection in the skin around the nail, which becomes inflamed, swollen, and painful. Learn more about causes, treatments, and preventions.

Your nails may hurt due to a nail infection, physical injury, nail biting, or other reasons. Learn more about possible causes and treatments.

Strep bacteria and fungi can cause nail infections as well. The infection itself can occur when the protective barriers around your fingernails or toenails are breached.

Strep bacteria and fungi can cause nail infections as well. The infection itself can occur when the protective barriers around your fingernails or toenails are breached.

This research may offer relief for people with repetitive body-focused behaviors — such as skin picking and hairpulling — that can affect their mental health.

Compulsive nail-biting, skin-picking, hairpulling, and lip- and cheek-biting are among a range of body-focused repetitive behaviors, or BFRBs, that can become a source of distress, but new ...