1, the lack of vertical stripes on the nails is mainly due to the lack of vitamin A. If the nail surface is not smooth enough, there will be obvious vertical stripes on the nails, which usually appear after overwork and excessive brain use; These vertical stripes will appear obviously in the case of insufficient sleep.

2. Poor digestion. Vertical stripes may not be digested well. Many people have dense or sparse prismatic vertical stripes on their nails, which is a sign of poor digestive system function. Some experts believe that the edge on the nail may be a sign of calcium deficiency. Liver and kidney function is weak, showing black vertical stripes. Hypoxia in the body presents blue vertical stripes, which may be a sign of lung infection such as pneumonia.

3. If the vertical stripes are small, it doesn't matter much. Just pay attention to diet, balance nutrition and do daily health care. Eat a diet rich in high-quality protein, such as milk, eggs, beans and fish. At the same time, taking vitamins and trace elements such as zinc, iron and calcium to regulate the body function will gradually disappear the vertical lines on the nail surface. If vertical stripes persist, it may be a chronic disease of internal organs. If the disease is not prevented, with the development of the disease, nails will become uneven and even crack.