1, nail concave changes, refers to the nails appear some horizontal lines, vertical lines and spots, etc.. The Chinese medicine pointed out that this change of the nail and the body’s tissue and organ function is low, the tissue structure of the destruction, atrophy and other pathological changes are closely related. 2, nail vertical lines, nail surface is not smooth enough, appear a straight line, usually will appear after overwork, brain overuse. These vertical lines will be clearly visible when there is a lack of sleep. If the vertical lines persist, it may be a chronic pathology of the internal organs. If not taken care of, the nails will become uneven and even crack as the condition progresses. Black vertical lines are a sign that the liver and kidneys are weakening and hosting toxins. You can eat more liver food, such as high protein food, fish and seafood, bean products and dairy products. Kidney food is sea cucumber, shrimp, tzatziki, eggs, black sesame, etc. Blue vertical lines indicate a lack of oxygen in the body, which may be a sign of lung infection such as pneumonia. In this case, you can eat foods that nourish the lungs, such as balsam pear, grapes, pomegranate, radish, silver fungus, etc. 3, nail horizontal lines, the horizontal lines on the nails is a record of the lesions that have occurred. In other words, when there are horizontal lines on the nails, the body must have some lesions. Generally speaking, at the beginning, the horizontal lines are only at the very bottom of the nail, and as the nail grows, it gradually moves upwards, which indicates that the onset of the disease is getting closer and closer. 4. Nail spots. A small number of white spots on the nail is usually a sign of calcium deficiency, silicon deficiency or parasitic disease. A larger number of white spots may be a sign of neurological weakness. If there are yellow dots on the nails, you may have a digestive disorder. Be careful if black spots appear on the nails. The lighter ones are just overworked and malnourished, while the heavier ones may be precursors of gastric prolapse, stomach cancer, and uterine cancer. 5, nail small sun nail health circle. Small sun, is the root of the nail white half-moon, called the nail half-moon, also known as the health circle. Generally speaking, the nail half-moon accounts for 1/5 of the entire nail is the best state, too big, too small or faint are not quite normal. People who have a large nail half-moon are prone to high blood pressure and stroke. If the nail half-moon is too small, the blood pressure is too low. People who do not see the nail at all have anemia or neurasthenia. Also, the color of the nail is best when it is milky white. A greenish color suggests a problem with the whistling system and a tendency to suffer from cardiovascular disease. A bluish color is a sign of poor blood circulation. Red, corresponding to the heart failure. 6, the tip of the nail sunken in indicates abnormal heart, liver or whistling system problems. 7, In addition to local fungal infections, green nails indicate bacterial infections in the body. 8, half-white nails and black dots on the fingertips can suggest kidney disease. 9.The appearance of isolated green streaks on the nail bed, especially spoon skin tone whiter choice, is a criterion of skin cancer. 10, bead-like nails (uneven surface) is a sign of rheumatoid arthritis. 11, nails extend to the fingertips and bend downward is a sign of lung damage, such as emphysema, asbestosis. 12, easy to break, crack, peeling, indicating malnutrition and lack of hydrochloric acid and protein. Mineral deficiency is also extreme at this time. 13, nail base bulge, and the white part is very small, means that this has a whistle system disease, such as emphysema or chronic bronchitis. This symptom has the possibility of hereditary. 14, Separation of the nail from the nail bed suggests thyroid disease or a limited infection. 15, The nails resemble a flattened brass instrument, indicating a tendency to lose some or all of the hair. 16, Reddish-brown pock marks and fingertip abrasion and splitting imply psoriasis; VC, folic acid, and protein supplements are needed. 17, Reddening of the skin around the nail bed means indigestion of essential fatty acids or connective tissue diseases, such as lupus. 18. Upright or horizontal ridges appear on the nail. An upright ridge means poor health, malabsorption of nutrients, and/or iron deficiency, kidney disease. Horizontal ridges are caused by excessive mental or physical stress. Interlocking nail crests indicate a tendency to form arthritis. 19. Thick nails suggest a low circulatory system, poor circulation, and thyroid disorders. 20.Thinning nails may be a sign of lichen planus. 21, Two fixed white stripes imply hypoproteinemia. 22, Wide square nails suggest endocrine abnormalities. 23, White lines indicate possible heart disease, high fever, arsenic poisoning. 24, Horizontal white stripes on the nail indicate possible liver disease. 25, If the white half-moon area of the finger root turns red, it indicates heart problems, and if it turns grayish-blue, it indicates heavy metal poisoning or lung lesions. 26.White nails mean liver or kidney disease and/or anemia. 27, White nails with pinkish color near the fingertips are a sign of cirrhosis of the liver. 28. Yellow nails appearing before other symptoms, i.e., may mean certain internal diseases, such as lymphatic and whistling system pathologies, diabetes, and liver disease. 29, darkening of the nails and crumbly spots under the nails indicate infection-induced (serious heart infection) myocarditis, other heart diseases, bleeding disorders. 30, brittle nails indicate possible iron deficiency, thyroid problems, impaired kidney function, blood circulation problems. 31, Brittle, soft and easily worn nails, lack of nutrition, may indicate hyperthyroidism. 32, Dark nails and/or thin, flat, spoon-shaped nails are signs of vitamin B12 deficiency or anemia. (Nails may also turn black or gray if hands are exposed to cleaning agents, allergens) 33. Dark blue nails indicate pulmonary obstruction, such as shortness of breath or emphysema. After reading the above introduction, do you have a deeper understanding of the nails, if you are unfortunate enough to have some of the above symptoms, please take the time to condition your body or see a doctor, after all, the body is the capital of the revolution, get well in order to better enjoy life.