There is a scar on the nail of the ten fingers, which is like a knife cut, what is the cause of it?

There are several distinct vertical lines on the nail deck that form a ridge called a longitudinal ridge.

Longitudinal lines are a symbol of long-term debilitation, the body's aging, and are prone to appear:

1. The Bible is weakened, long-term insomnia, dreaming, easy to wake up, and difficult to fall asleep.

2. Wasting disease, physical exhaustion (physical fatigue syndrome) 3, poor immune function, easy to catch colds and frequent colds.

4. If the longitudinal lines are particularly obvious, it means that it is a pathological longitudinal line, indicating that the body has suffered major disease injuries before.

5. If there are black longitudinal lines on the nail bed, special attention should be paid to it, which is a sign of liver and kidney weakness and toxin accumulation, when the liver and kidney function are weakened, the waste products in the body cannot be excreted from the body. For example, due to exposure to polluted environment, dietary pollution, excessive pesticide and heavy metal content in food, excessive accumulation of drug toxins in cancer patients after chemotherapy or a severe gastroenteritis diarrhea, black longitudinal lines are often formed on the deck.

Hope it helps!

1. Black nails and broken spots under the nails indicate myocarditis caused by infection (severe heart infection), other heart diseases, and abnormal nail blood diseases.

2. Fragile nails indicate possible iron deficiency, thyroid problems, impaired kidney function, and blood circulation problems.

3. Nails are brittle, soft and easy to wear, lack of nutrition, and may show hyperthyroidism.

4. Black nails and thin, flat, spoon-shaped nails are signs of vitamin B12 deficiency or anemia. (Nails may also turn black or gray if your hands come into contact with detergents and allergens).

5. Dark blue nails indicate obstruction of the lungs, such as asthma or emphysema.

6. Inverted nail tips indicate abnormal problems in the heart, liver or respiratory system.

7. In addition to local fungal infection, green nail thirst indicates bacterial infection in the body.

8. Semi-white nails and black spots on fingertips can suggest kidney disease.

9. Isolated green streaks appear on the nail bed, especially the skin color is whiter, which is a criterion for **cancer.

10. Beaded nails (uneven surface) are a sign of rheumatoid arthritis.

11. Nails that extend to the fingertips and bend downward are signs of lung damage, such as emphysema, asbestosis.

12. It is easy to break, crack and peel, indicating malnutrition and lack of hydrochloric acid and protein. Minerals are also extremely deficient at this time.

13. The methyl part of the finger is bulging and the white part is very small, which means that there is a respiratory disease, such as emphysema or chronic bronchitis. There is a possibility that this symptom is inherited.

14. Separation of the nail from the nail bed suggests thyroid disease or localized infection. It is also possible to be exposed to too many chemicals, such as frequent manicures, frequent soaking of nails in water, or exposure to chemicals.

15. The nails resemble a flattened brass instrument, indicating a tendency to lose some or all of the hair.

16. Reddish-brown acne scars and fingertip wear and forks mean psoriasis; Supplementation with VC, folic acid, and protein is required.

17. Redness around the nail bed** means indigestion of essential fatty acids or connective tissue diseases, such as lupus.

18. Erect or horizontal ridges appear on the nails. An erect ridge indicates poor health, malabsorption of nutrients, and/or iron deficiency or kidney disease. The horizontal ridge is caused by excessive mental or physical stress. The nail ridges are staggered, indicating a tendency to form arthritis.

19. Thick nails imply low circulatory system function, poor blood circulation, and thyroid disease.

20. Thinning of the nails may be a sign of lichen planus.

21. Two fixed white stripes indicate hypoproteinemia.

22. The wide square of the nail suggests an endocrine abnormality.

23. The white line indicates that there may be heart disease, high fever, and arsenic poisoning.

24. Horizontal white stripes on the nails indicate that there may be liver disease.

25. If the white half-moon-shaped area of the finger root turns red, it means heart problems, and if it turns gray and blue, it means heavy metal poisoning or lung lesions.

26. White nails mean liver or kidney disease and/or anemia.

27. White nails with pink near the fingertips are a sign of liver cirrhosis.

28. Yellow nails appear before other symptoms appear, which may mean certain diseases in the body, such as lymphatic and respiratory diseases, diabetes, and diseased nail and liver disease.