What's the matter with the sunken mark in the middle of the nail

Many people have a dent in the middle of their nails and a mark on it, and they don’t know what’s going on. Some people think that the problem is not serious and does not deserve attention, but over time, it may appear on all ten nails. In fact, this is caused by many factors, and it is also a reminder from the body that the body is in sub-health condition and we should pay attention to health preservation.

1. Oxygen deficiency

Hypoxia can cause the body's arterial oxygen partial pressure to drop, resulting in hypoxia in the peripheral tissue blood circulation, causing nutritional metabolic disorders in the nails and forming nail depressions.

2. Heavy physical labor

Among people who suffer from nail pitting, those who do heavy physical labor are more likely to suffer from it than those who do light physical labor. The intensity of labor has a certain impact on nail pitting.

3. Nutritional status

Iron deficiency anemia and Rayynolds' disease, which causes limb ischemia, can both cause nail pitting. Nails also have a certain relationship with nutrition.

4. Long-term exposure to cold water

Long-term contact of fingers with cold water, spasm of peripheral blood vessels and direct immersion of nails in cold water may also be the causes of nail depression.

5. Cold Factor

The incidence of nail depression in people who work outdoors for a long time is significantly higher than in other types of work.

6. Caused by abnormal cysteine ​​metabolism

Some people also believe that anti-A may be caused by abnormal cysteine ​​metabolism. You should first consider whether you have iron deficiency anemia. Of course, there may be other reasons, so you should go to the hospital for relevant examinations and conduct corresponding treatment after finding out the cause.