Summary: Kids can develop pretty gross habits. Nail biting is a common one—more than 50 percent of teenagers bite their nails. But frequent nail biting can lead to infection, warts and permanent nail damage. Pediatrician <a href="https://healthcare.utah.edu/fad/mddetail.php?physicianID=u0548562">Dr. Cindy Gellner</a> discusses why nail biting can be a serious health concern and offer some strategies to help your kid kick the habit.
