(Snorrason and Woods, 2014). Cheek biting comprises pinching the inner check and lips between the teeth and repeatedly biting, grinding, or pulling the tissues; resulting in damage to the inner walls of the cheeks. Virtually any repeated behavior that damages bodily tissue could be considered a...
For some people, nail biting, lip chewing, and scab picking aren’t just “bad” habits. Find out with the help of WedMD's slide show how these serious impulse control problems cause damage.