Vertical stripes on fingernails may be caused by physiological reasons or pathological reasons such as malnutrition, which need to be treated according to the etiology and choose different medications. 1. Physiological reasons: finger nail vertical lines may be formed in the process of growth and development of the nail longitudinal grooves or longitudinal ridges, if the nail surface has a uniform distribution and normal color of the stripes, generally do not need to be treated, this is a normal physiological phenomenon. 2. Pathological causes: Nail dystrophy, caused by trauma, partiality, chemical stimulation, detergent stimulation, if this is the case to change the above habits, remove the causative factors can be relieved. Nail fungal disease, caused by fungal infection of the nail plate, requires topical and oral antifungal medication to remove the vertical lines on the nails. Common skin diseases combined with nail damage, such as psoriasis, lichen planus can cause changes in the nails, need to actively treat the primary disease, the primary disease is well controlled, the symptoms of vertical lines on the nails will also improve. Finger nails appear vertical lines recommended to the regular hospital in a timely manner, clear cause of the disease, under the guidance of specialists to carry out active treatment, avoid blind self-medication, so as not to cause adverse consequences.