The parents and educators are no longer surprised when they see their children or a baby bite their nails, but it affects their whole life, even their identity. The topic is discussed so that the audience can know that there is a cause for this case.
Often the underlying cause is fear, and always it is the left hand that is bitten. One of the reasons for this is early breastfeeding. Children who experience this condition are vulnerable, irritable, timid, anxious and fearful. As a result, it affects his entire career. It is irresistible, it cannot be threatened, it cannot be punished but it hurts it.
What you need to do is explain to him that this has serious health consequences. We make him do "travail manuel" crafts, to forget to bite. If adults catch this case they need sleep.
Translated by Ramiarimalala Masoandrosoa Armancia Victoria