Onychophagia

Nail Biting Onychophagia Nail-biting (onychophagia) is a common stress-relieving habit. Your child may bite their nails during times of stress, excitement, or during times of boredom or inactivity. Nail-biting can also be a learned behavior from family members. Nail-biting is the most common of the typical "nervous habits," which include thumb-sucking, nose-picking, hair-twisting or hair-pulling, [...]