What causes small pits on nails?

Small pits on the nails are a common problem for many people in daily life. Although they do not hurt or itch, they will affect the beauty of the nails. So what are the small pits on the nails? In fact, this is related to the following 6 reasons. The first reason is hypoxia.

1. The reason why there are small pits on the nails

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

The intensity of labor also has a certain impact on nail depression. Among people with small pits on their fingernails, there are more people who do heavy manual labor than those who do light manual labor.

3. Nutritional status

Suffering from iron deficiency anemia, which leads to limb ischemia, can cause Lennox and concave concave. There is also a certain relationship between nails and 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. Abnormal cysteine ​​metabolism

Some people also believe that anti-A may be caused by abnormal cysteine ​​metabolism.

2. Functional development: The function of nails

Nails are one of the appendages of the skin. It has its specific functions. First of all, it acts as a "shield", protecting the distal fingertips from damage, maintaining their stability, enhancing the tactile sensitivity of the fingers, and assisting in grasping, pinching, pinching, and squeezing.

The nail bed is rich in blood supply and has the function of regulating peripheral blood supply and body temperature. Secondly, nails are the focus of hand beauty. Beautiful nails add to women's charm. A patient with defective or deformed nails, even if he (she) has a finger with good function, may hide the finger and not use it due to inferiority complex due to the nail, resulting in functional impairment.