There are many reasons for children’s hand barbs, such as bad habits, dry skin, nutritional deficiencies and so on. 1. Bad habits: children daily if there is the habit of biting fingers, can cause children’s hands with the phenomenon of barbed wire, mainly due to the biting of fingers will be damaged to the local skin, and therefore may cause barbed wire phenomenon. 2. Dry skin: children who do not pay attention to hand care, or in the dry season, will lead to dry skin phenomenon, which will cause children’s hands with barbs. 3. Nutritional deficiencies: some children if there is a long time picky eating, partiality and other behaviors, may lead to malnutrition in the body, especially the lack of micronutrients, can also lead to the phenomenon of children’s hands with barbed wire. There are many reasons why children have barbs on their hands, and it is recommended that they go to the hospital in time to complete the examination and take standardized treatment according to the doctor’s instructions, so that they can’t ignore the symptoms and take them lightly.