Delaminated fingernails in children are seen in many skin conditions, such as eczema and psoriasis, where the disease can cause changes in the nails, with discoloration, delamination, thickening or bumpiness. In children, delaminated fingernails can also be seen as a result of gray nails, which are usually individual nails. In addition, potassium malnutrition can also lead to fingernail delamination, which is seen in children who are paranoid and may have micronutrient deficiencies, and in children who have a habit of biting their nails, which can also lead to nail malnutrition and thus cause fingernail delamination.