Nails without luster with vertical lines may be caused by low immunity, lack of trace elements, nail fungus and other reasons. 1. low immunity: prolonged overwork, late night, mental fatigue may make the patient’s nails have ribbed vertical lines, lack of luster and other symptoms appear. 2. Lack of micronutrients: Nail malnutrition caused by lack of micronutrients, the surface of the nail plate, in addition to vertical lines, will also become brittle, lack of luster, uneven, usually nail malnutrition involves more than one nail. 3. ringworm of the nail: is a fungal infection disease, the performance of the nail plate is broken, the surface of the nail plate appears brown or gray-brown pigmentation, unevenness, lack of luster, vertical lines, the accumulation of keratin under the nail. Nail fungus often starts with a single or a few nails and gradually spreads to other nails. If a patient develops nails that lack luster and have vertical lines, it is recommended that he or she seek medical attention to clarify the cause of the condition and treat the condition under the guidance of a doctor.