Vertical lines on finger caps are mostly normal physiological phenomena, but may also be caused by nail trauma, malnutrition, onychomycosis, etc. 1. Normal physiological phenomena: most adults with obvious vertical lines on the nails is a normal physiological phenomenon, with the growth of age, the surface of the nails is gradually shrinking, easy to cause vertical lines or horizontal lines.
2. Nail trauma: Nails are traumatized; or often friction with certain substances; long time manicure can also affect the shape of the nails, so that the finger cap is damaged.
3. Malnutrition: when the intake of nutrients is unbalanced due to picky eating and partiality, and the body lacks vitamins and proteins, there may be obvious vertical lines on the nails.
4. Ringworm of the nails: Nail growth is restricted due to fungal infection of the nail plate and nail bed, which may be manifested as vertical lines on the nails.
In addition, some skin diseases such as psoriasis, lichen planus, etc. involve the nails, will also cause the nails appear vertical lines.
Finger vertical lines, after excluding physical causes, it is recommended to go to the hospital in a timely manner, to clarify the cause of the symptomatic treatment.