There is a dent in the middle of the thumb nail

Many people may not know what causes the indentation in the middle of the thumb nail, nor do they know how to deal with this symptom. Therefore, when the thumb nail is indented in the middle, we should check the cause of the disease and then choose the treatment method based on the cause. Let us now understand the reasons why the middle of the thumb nail is concave, so as to avoid injuries to the thumb.

1. What is the cause of the sunken thumb nail?

Human nails are mainly composed of protein elements with a high sulfur content. The skin under the nails has a rich blood supply and there are a large number of capillaries nearby, which makes it pink. Nail growth is inseparable from normal nutrition. If a person is malnourished or anorexic, the growth will be slow and "horizontal grooves" will appear on the epidermis. Lack of nutrition will also cause the nails to be brittle and have gaps. Therefore, by looking at abnormal or deformed nails, you can know the patient's physical condition. There is a row of indentations on the nails that look like a piece of brass that has been hit with a hammer - this is related to the condition of hair loss or partial hair loss. Therefore, it is recommended that you go to the hospital and ask an experienced Chinese medicine doctor to see you, and do some tests. If you are sick, you can get treatment early and get better early. If you are not sick, you can also feel at ease and resolve your doubts.

2. What are the symptoms of nail depression?

Nails with excessively raised curves or curled deformities may indicate emphysema, tuberculosis, cardiovascular disease, ulcerative colitis or cirrhosis of the liver. Nails that are flat or spoon-shaped may be associated with iron deficiency anemia, syphilis or thyroid disease. Nails with horizontal "grooves" may indicate malnutrition or temporary suffering from measles, mumps, or heart disease. Nails that grow slowly, are thick and hard, and are yellow or yellow-green in color may be associated with chronic respiratory diseases, thyroid disease, or lymph glands. Nails with irregular indentations may be a characteristic of most psoriasis patients. Nails with a row of indentations that look like brass pieces struck with a hammer may be associated with hair loss or semi-hair loss.

3. Differential diagnosis of nail depression

There are depressions on the edge of the fingernails: this is a sign of arteriosclerosis or cancer; if the fingernails are deeply sunken into the flesh, it shows that our liver is damaged; different fingers with depressions also represent different physical problems. A depression in the thumb nail indicates lack of energy; a depression in the middle finger nail indicates excessive uric acid in the body and muscle soreness; a depression in the ring finger nail indicates eye disease and abnormal changes in the respiratory system; a depression in the little finger nail indicates mutations in the throat, adverse changes in the nervous system, and poor gallbladder function.

The growth process of the nail pit

1. The growth rate of nails is related to a person's age, etc. A baby's nails grow about 0.7 mm per week, and as they age, the growth rate of their nails increases. An adult's nails can grow 1 to 1.4 mm per week, but for most people, nail growth slows down after the age of 30. Nails grow at different rates at different times of the year and day. Generally, nails grow fastest in summer and slowest in winter. Nails grow fastest in the morning and slowest at night. Compared to toenails, human fingernails grow faster. The ten fingernails on the same person's hands grow at different rates. On a hand, the nails on the longest fingers generally grow the fastest, while the nails on the little finger and thumb grow the slowest.

2. For most people, because they are more accustomed to using their right hand, their right hand nails grow faster than their left hand nails. But for left-handed people, the opposite is true, that is, the nails on the left hand grow faster than those on the right hand. The growth rate of nails is also related to a person's mood. When people are in a good mood, their nails will appear smooth and shiny. This is because physical and mental happiness can promote blood circulation, increase local blood flow, and provide more nutrients to the nails.