The nail is medically known as the nail plate, with the tip of the finger at the front and the tissue under the skin at the back called the nail root. The nail of a normal child is pink, smooth and tough, with a slightly lighter color of the nail half-moon. The finger (toe) nail is the product of the epidermal keratinization of the finger (toe) end, which protects the finger (toe) end. The nail bed and nail root are rich in blood vessels, which provide rich nutrition for nail regeneration. Clinically, a part of the nail is delaminated and peels off in sheets, called nail stripping, or nail delamination. A common cause is malnutrition, but it may also be due to a skin condition such as lichen planus. If a child has a picky or partial diet, this may lead to an unbalanced or lack of nutritional intake, which can lead to nail delamination. It is recommended that the diet should be diversified, with a reasonable mix of various nutrients, a balanced arrangement of meat and fish, and more fresh fruits and vegetables; if the nail delamination is caused by a fungal infection and the nail is destroyed by the fungus, it is necessary to cut and peel off part of the empty nail and apply some disinfectant and anti-mycotic infection medication to the affected area daily to prevent infection. Whether it’s malnutrition or fungal infection, nail delamination is a direct reflection of your child’s ill health, so mothers should be vigilant and go to the hospital for detailed examination and treatment if necessary.