The right fingernail is a little uneven, and it looks like there is a crease in the middle. What is the reason, especially the tail finger, which is particularly serious?

Nail health standard color: healthy body, nails appear natural pink under normal reaction. If the body is unhealthy, sometimes the color of nails will turn into white, red, black, purple and other colors. Shape: the nail surface is smooth without horizontal and vertical lines and obvious unevenness. Solution when your nails have the following changes: nails turn black: it is probably because of the increase of melanin in the body. If your nails are like moles, you should take vitamin C to get proper rest and nutrition for your nails. Dark color: suffering from chronic diseases, long-term depression, smoking, or finger contact with carbon paper, hair dye and other chemical pollutants, can make nails discolored or dyed. If the nails are dyed too deeply, it is better to wait for the new nails to grow. If you want to remove surface stains in time, you can rub your fingertips repeatedly with a piece of lemon, then wash and dry. Pale nails: This may be due to the lack of zinc and vitamin B6, or it may be caused by anemia. After improving the nutritional status of the diet, the symptoms of pale nails still exist, so consult a doctor to find out the reason. Sometimes this kind of nail will appear after the age of 40, which is caused by the weakening of cell regeneration ability. Therefore, check at least once a year to see if there is anemia or lack of vitamins and minerals. The disease may indicate a lack of vitamin A, calcium or iron. Flat nails: If you lack protein or iron for a long time, it is usually easy to cause spoon-shaped or flat nails, which can be corrected by improving your diet. Bent nails: Wearing artificial nails will cause nails to store water and become soft, leading to upward bending of nails. For this problem, we should appropriately increase nutrition and remove artificial nails. But it may also indicate a lack of calcium, protein and sulfur in the body. These nutrients can be obtained from eggs and garlic. Wavy lines: If the nails are wavy and dull, it may indicate a lack of protein, vitamin A and vitamin B or a lack of minerals. This can improve the daily diet and supplement a variety of vitamins every day, such as vitamin B6 and zinc. Broken nails are dull: some people have slightly longer nails, which will crack, dull and dry. No matter how clean the fingers are, the whole hand still looks bad. Usually, people in this situation are malnourished. At this time, they should eat more animal protein and calcium products. Drinking milk is the best calcium intake, and drinking 1/3 liters per day is enough. Nail health maintenance plan: take two spoonfuls of yeast and choline 1000 mg orally every day. It is best to add these nutrients to liquid or milk for oral administration, which will help improve the strength of nails for a period of time. In view of the fact that iron deficiency can lead to dry and fragile nails, it is usually best to eat more iron-rich foods and take vitamin C to improve the ability to absorb iron. Often soak nails in warm malt oil or other natural oil for about 5- 10 minutes, and then massage them from fingertips to the cuticle on the surface. If the nail surface is slightly scratched by the sand board, grease can easily penetrate into it. Soak your fingers with vinegar diluent every night, which is a good way to prevent nails from cracking easily. Using white iodine above and below the nail tip can not only restore the elasticity and strength of the nail, but also prevent the nail from breaking. Eating a proper diet rich in protein and taking vitamin C plus 15 mg zinc supplement can accelerate the growth of new nails and gradually make the horizontal raised linear nails disappear. Eating more sunflower seeds and increasing the intake of vitamin A will help the soft and brittle nails return to normal and look brand-new. Health Barometer: Nails are a barometer of human health. Normal nails are ruddy, tough, arc-shaped, smooth and shiny, and their roots are gray. If the color of the nail shape changes, it means that the human body may have some kind of disease. Here are some common knowledge of nails: from the shape of nails, nails are flat, concave, spoon-shaped, brittle and dull, and symptoms of liver water deficiency or iron deficiency anemia, hypochromic anemia and light-colored small cell anemia. Nails are parrot-shaped, and fingertips are like drumsticks, which are more common in congenital heart disease with cyanosis, rheumatic heart disease, chronic heart failure and lung abscess, emphysema, silicosis, chronic fibrocavitary tuberculosis, chronic ulcerative colitis and other diseases. The appearance of horizontal stripes on nails is a precursor to nephropathy or myocardial infarction; The appearance of longitudinal stripes is a harbinger of liver disease; The appearance of pit lines is poor respiratory function. From the color of nails: nails turn white, and hemorrhagic shock is an emergency; Chronic diseases can be seen in anemia, hookworm disease, gastrointestinal bleeding, advanced tuberculosis, pulmonary heart disease and so on. As white as ground glass, it is a characteristic of cirrhosis; Nails turn white, thin and soft, which are more common in chronic wasting diseases. Yellow nails are lack of vitamin E, which is found in hypothyroidism, carrot disease, nephrotic syndrome and so on. Nails turn gray. It's onychomycosis. The nail surface is purple with small red thorns, which is caused by lack of oxygen, indicating that the heart and lungs are sick. Nails are half red and half white, indicating poor kidney function. White spots or flocculent white spots appear on nails, which may be zinc deficiency or gastrointestinal diseases or anemia; Black spots or green spots are signs of poisoning; Erythema appears around nails, which is more common in patients with lupus erythematosus and dermatitis. One and a half months is blue, but the peripheral circulation is poor; Obvious redness is a sign of heart failure; It is obvious for one and a half months, and the intestinal absorption is good; No or narrow, indigestion. Nail is really a window to observe human health, so we should always pay attention to its changes, especially for long-term manicurists, who forget to take vacations every once in a while and let it show its true colors. If you find multiple nail variations, you should see a doctor in time.