Some parents currently ask: how do children often bite their nails? 1, the child nail biting is a bad behavior habits, need to see a specialist to the psychiatric hospital pediatrics, as soon as possible to correct. 2, usually parents should try to reduce the child nail biting behavior of bad attention, such as: blame, criticism, and even scolding, etc.. Let the child try to grow up in a relatively safe, calm and comfortable environment. Try to guide, to encourage, to affirm, to give more correct guidance. Good children grow up in the sound of praise, so that their self-confidence is constantly being strengthened. 3, expand the child’s social range, so that more contact with peers, so that the child can learn more suitable for his psychological age, physical age social skills, conducive to the child’s mental health, as well as the formation of a sound personality. 4, usually pay attention to observe the child’s shining points, to see in which areas of talent and interest, you can focus on training. 5.Increase outdoor activities to divert his attention and keep a happy mood. 6.Cultivate the good habit of trimming nails regularly. 7, pay attention to dietary regulation, to avoid the bad habits of partial eating, balanced diet. To protect nutrition, especially to avoid deficiency of zinc, iron, etc.