What is wrong with fingernails?

The fingernail vertical lines are not caused by vitamin deficiency. The fingernail vertical lines are actually the same as the texture of human skin. They belong to the natural phenomenon in the metabolic process and are not pathological manifestations. They are only affected by many factors such as the growth rate of human nails, age, occupation, etc. There are individual differences in the obvious degree of fingernail vertical lines. For example, the fingernail vertical lines of the elderly and manual workers will be obvious. At ordinary times, prevent soap, detergent, hand sanitizer or chemical raw materials from stimulating nails, pay attention to the moisturizing treatment of nails and surrounding skin, and contribute to nail care.