The nails turn black, which may be caused by trauma and local congestion. If trauma is ruled out, it is necessary to consider whether to do nails often. Excessive heavy metals in nail products may also affect nail color. In addition, if the nails have fungal infection, malnutrition or even partial hypoxia, there will also be blackening.

As for the specific reasons, on the basis of self-examination, we can go to the hospital for examination, consider in many aspects, find out the reasons and carry out treatment. And during the treatment, keep a light diet and stay away from spicy food.

What is the reason for the long vertical stripes on nails?

Normal nails should be smooth. If vertical stripes appear, they may be caused by the following four reasons:

The first reason is that the body lacks vitamin A.

When the body lacks vitamin A, nails are more prone to vertical stripes. At this time, you can eat more foods with high vitamin A content, such as milk, eggs, eels, oysters, colored peppers, carrots, pork liver, broccoli, tomatoes, cherries and so on. Stick to it for a while and the symptoms will be alleviated.

The second reason is that the nails are caught.

If the nails are inadvertently pinched or collided, vertical lines will also appear. But this situation will generally improve within half a month, so don't worry too much. In addition, for girls who love beauty, if they often do nails, vertical lines will also appear when the nails are rubbed. At this time, you should reduce the number of nails and take care of them in time.

The third reason is overwork.

When people are too tired or indigestion, nail development will be abnormal, leading to vertical stripes. At this time, it is necessary to adjust in time, learn to decompress and ensure adequate sleep.

The fourth reason is that the body is suffering from diseases.

When nails grow vertical stripes, and the number is large, and the surface is uneven, patients will also have abdominal pain, indigestion, dizziness and headache. Be alert to physical illness, and you'd better see a doctor in time.

In fact, in addition to these changes, there will be other abnormalities in nails. And different situations also reflect different health conditions, such as:

Pale nails indicate insufficient qi and blood, which is prone to anemia, so pay attention to it; The sudden purple of nails may be a precursor to arteriosclerosis, hyperlipidemia and heart disease. Need to pay attention, seek medical attention as soon as possible, and find out the reason. Blue nails indicate blood stasis and body cold. If the nails are yellow, it means that there is something wrong with the liver and gallbladder and the body's metabolism is damaged. In addition, if the nails are blue, it means that the lungs are blocked and you need to pay attention to lung health.

White spots appear on the nails, indicating that the body lacks calcium and needs calcium supplementation in time. Of course, if the body has parasitic diseases, nails will also have white spots. If there are barbs on the edge of nails, it means that the body lacks vitamins and trace elements, so it should be checked as soon as possible, supplemented in time, and the symptoms can be improved. If there are horizontal stripes on the nails, it means that there is insufficient blood or pathological changes in body organs. It is recommended to check in time.

Although the nail area is not large, it usually attracts little attention, but it is a barometer of health, so we should pay attention to protection at ordinary times. Wash your hands more at ordinary times, remove the dirt from your nails, eat more foods with high vitamin A content, and supplement your nails with nutrition. After the nails grow out, they should be trimmed frequently to avoid cracking and hurting the fingertips.