When we look at our nails, we usually only care about whether they are long, good-looking or not, and whether they are suitable for manicure. But in fact, nails can also reflect the condition. For example, uneven nails may be a sign of lack of nutrition. If there is a deep black line on the nail, it is a cause of concern. It may be some kind of disease. The specific causes of the black line on the nail are as follows. Let’s learn about it quickly. Caused by trauma

If there is a black line on only one nail on the nail, it is probably bleeding caused by recent trauma to the nail, such as: being caught in a door, being hit by something, etc. It may cause the capillaries under the nails to burst and bleed. Most of these nail blood filaments are fragmented blood spots, which will quickly turn brown or black in color, and the location of the bleeding spots will gradually move toward the distal end of the nail as the nail grows. Caused by poor sleep

Many people are busy at work and study, resulting in spending a lot of time staying up late. Long-term poor sleep conditions can induce abnormal nail growth, such as: vertical nail lines, nail Symptoms such as black lines. Caused by malnutrition

A deep black line on the nail may also be caused by a lack of nutrition and a lack of vitamins in the body. Because the nails lack vitamins and other nutrients, the capillaries on their surface will be fragile and prone to self-inflicted If it breaks, it will form congestion over time, resulting in a black line under the nail. Caused by diseases

Dark lines on nails caused by diseases such as Addison's disease, certain digestive system diseases, onychomycosis, melanoma, etc. Among them, melanoma is the most serious and is derived from melanocytes. Malignant tumors are common in the skin, soles, toes, finger tips, subungual and other parts of the body. This disease can be transformed from onychomycosis. Generally, after surgical treatment of early-stage malignant melanoma, the five-year survival rate can reach more than 60%, but If it is not detected and treated in time, the five-year survival rate of advanced melanoma is less than 5, and it is very easy to metastasize and relapse, making it a relatively serious condition.

Note: Specific conditions require examination at a regular hospital and judgment by a professional physician. Please do not make your own diagnosis or treatment. What to eat to eliminate black lines on nails

If the black lines on nails are caused by trauma or lack of nutrition, you can promote the elimination of black lines on nails by eating the following foods, such as foods rich in protein, calcium and other minerals. Such as milk, eggs, beef, tofu, soy milk, fish, shrimp and other foods. However, if the black lines on the nails are caused by a disease, you need to seek medical treatment as soon as possible. The black lines on the nails can be eliminated only after the condition is completely cured, such as nail polish. The main method of treating moles is surgical removal. After all, the disease may become malignant in the later stages, so early preventive treatment intervention is needed.