As children grow, they often find that their nails are falling off. The following analysis of the reasons. 1, the child’s nail deck becomes thin and brittle, there are vertical protruding prongs, the tip of the nail is easy to fall off, most often the performance of nail malnutrition, such as the diet of protein and calcium, sulfur, zinc and other elements or vitamin A, B, C is not enough. 2, nail loss is also seen in flat tinea and other skin diseases. Parents should strengthen the child’s nutrition, balanced diet, and develop good habits of the child, not picky, not partial food, after a period of time the child’s nails will improve. 3, nail loss is a manifestation of the disease of gray nails. Grey nails are a contagious disease caused by a fungus. The nails are mostly found in the fingers and toes, causing pain and discomfort, often manifested as nail loss, nail thickening, nail deformation, nail discoloration and other symptoms, because the fungus is not easy to kill, should follow the doctor’s instructions according to the course of treatment. 4, children such as nails accompanied by redness, swelling, pain and shedding, do not exclude the nail gourd infection caused. The nail is mostly caused by tiny puncture wounds, contusions, barbs or nail clippings that are too deep, and the causative agent is mostly Staphylococcus aureus. 5, in addition, the nail and water contact time is too long; nails are polished or use abrasives, etc. can lead to nail loss.