Nailbiting - PubMed- child nail biting ,Nailbiting is a common oral habit in children and young adults. It is estimated that 28 to 33% of children between the ages of 7 to 10 years and 45% of adolescents are nailbiters. The etiologies suggested for nailbiting include stress, imitation of other familyNail Biting in Children: Causes & 8 Effective Ways to Stop22/5/2018· Nail biting is a common habit among kids that is caused by various factors. It can be overcome by building other positive habits. Read more about causes of nail biting in kids along with causes, complication and treatment.