Fingernail layering may be damaged nail plate, lack of trace elements or nail fungus. 1. Damaged nail plate: If the nail is damaged by trauma, such as being hit by a heavy object or being pinched, the nail plate is damaged, which may lead to abnormal shedding of the nail plate, and the phenomenon of finger nail layering may also occur. 2. Lack of micronutrients: if usually partial food and picky eating, so that the body intake of nutrition is not comprehensive, lack of micronutrients, leading to nail malnutrition, may also appear fingernail layering phenomenon. 3. Nail fungus: If you don’t pay attention to nail hygiene, resulting in fungal infection of the nails, suffering from nail fungus, the nails will be damaged, so there may be nail layering performance. Fingernail layering is recommended to actively go to the regular hospital, clear specific reasons, and then targeted treatment, so as not to delay the condition.