The crescent moon is actually the bottom part of the nail bed, and it is the part that keeps getting along with nails? Bed? It provides nutrients for nail growth and belongs to connective tissue. The nail bed is rich in blood vessels and nerve endings. When the blood circulation of the human body is normal, the blood supply at the nail tip is sufficient, and the nails grow rapidly, so new nails will continue to grow. Newborn nails are lighter in color, differentiate faster near the middle of nail bed, and the growth rate on both sides decreases, so a so-called? Crescent moon? . Moreover, some people are born with late armor or slow armor, so the natural crescent moon can't be exposed.
Thumb is generally available, little finger is generally not available. The nails that are used a lot grow fast and metabolize quickly, and the thumb is a model of five fingers. Nails are used very often, so the crescent moon is easy to be pushed out when it grows fast, so generally everyone has a crescent moon on their thumb. The little finger is generally used less than the other four fingers, and it is rare to see a crescent on someone's little finger. Therefore, the size and presence of the crescent moon does not represent people's health.
Some manifestations of healthy nails are uniform color and light pink.
Nails are tough, moderate in thickness, moderate in hardness and not easy to break.
Nail edges are relatively neat, without small gaps (not counting external reasons).
The nail surface is smooth and shiny, without obvious lines and delamination. ?
Different colors of nails are white: nails are white and bloodless, which generally indicates malnutrition or partial anemia. If you press your nails, you can't recover your blood color for a long time after loosening them, and you may have symptoms of qi stagnation and blood stasis. If the nails are as white as ground glass, it may be cirrhosis, so go to the hospital for examination as soon as possible.
Color is gray: nails are gray, usually because of lack of oxygen. Most people who smoke have gray nails. If a person's nails suddenly turn gray, it is likely that they have onychomycosis.
Yellow color: Generally, Chinese medicine thinks that yellow nails are caused by damp heat, while western medicine thinks that it is a lack of vitamin E. If all nails are yellow, the situation is very serious, and you need to go to the hospital for examination and treatment immediately.