In addition, if burrs often appear around the nails, it is mostly a deficiency syndrome. Nails are dry and fragile, easy to crack or break, abnormal nail bed, etc. It may also be caused by common diseases such as thyroid diseases.
Extended data
Nail crescent is one of the direct manifestations of human energy and health, which is particularly closely related to our gastrointestinal function. Generally speaking, there are more than seven crescent moons, accounting for 1/5 of the nail area, and the edges are clear and ivory, which is normal, indicating that the body is very healthy.
Six new moons: representing health. Less than five: it means there is something wrong with the body. Below 2: If neither thumb has a crescent moon, people's health is worrying.
People's Network-Health Code in Nail? The color of nails hides the signs of disease.