What is the nail vertical line?

The nail shows vertical lines, which may be caused by the lack of trace elements, such as iron deficiency, calcium deficiency, zinc deficiency, etc., which will affect the smoothness of the nail. In addition, some chronic diseases of the body will also be reflected in the nail, showing vertical lines changes. For example, patients with chronic gastroenteritis will show vertical lines changes. First do a blood test, trace elements and other related tests to determine which cause, such as iron deficiency, can be treated by using ferrous gluconate oral solution.