The nail surface is not smooth enough, and a straight line appears, which generally appears after overwork and excessive brain use; These vertical stripes will appear obviously in the case of insufficient sleep. If vertical stripes persist, it may be a chronic disease of internal organs. If not nursed back to health, with the development of the disease, nails will become uneven and even crack.
2, spots:
There are a few white spots on nails, which are usually the manifestations of zinc deficiency, silicon deficiency or parasitic diseases; There are many white spots, which may be a sign of neurasthenia; Yellow spots on nails may cause diseases of the digestive system; If there are black spots on your nails, be careful. The light one is just overwork and malnutrition, and the heavy one may be a precursor of gastroptosis, gastric cancer and uterine cancer.
3. Horizontal stripes:
The tattoo on the nail is a record of the lesion that has occurred. In other words, when there are horizontal lines on the nails, there must be some lesions in the body. Generally speaking, at the beginning, the stripes are only at the bottom of the nails. With the growth of nails, it gradually moves upward, indicating that the onset time is getting closer and closer.
Extended data:
Nail color
1, the color is white:
Pale nails and lack of blood color are more common in patients with malnutrition and anemia; In addition, if the nails suddenly turn white, there are common emergencies such as blood loss and shock, or chronic diseases such as hookworm disease, gastrointestinal bleeding, advanced tuberculosis and pulmonary heart disease; If the pressed nails turn white, the blood color will not recover for a long time after release, which may be qi stagnation and blood stasis. It should be noted that if the nails are as white as ground glass, it is a feature of cirrhosis.
2, the color is red:
Red is the performance of heat, and the bright red in A is yin deficiency heat or fatigue; Crimson or reddish purple, mostly caused by wind and heat, can be manifested as muscle, bones and muscles, joint pain or numbness, gout and other diseases.
3, the color is gray:
Nails are gray, mostly due to lack of oxygen, more common in smokers; For non-smokers, nails suddenly turn gray, most likely suffering from onychomycosis. At first, the edge of the nail will itch, and then the nail will lose its luster and turn gray, such as onychomycosis.
4. The color turns yellow:
Yellow nails are mostly caused by damp-heat fumigation, which is common in hypothyroidism, carrot disease and nephrotic syndrome. Western medicine believes that yellow nails are mostly related to the lack of vitamin E in the body. If all nails turn yellow, they must be treated, because it is a symbol of general weakness.
5. Turn blue and black:
A blue color is mostly cold, pain, and blood stasis. If your nails are black and blue, you may be very ill.
Baidu encyclopedia-nail depression