Nail meniscus is mainly formed by the matrix of the nail, the matrix of the nail constantly produces new keratinocytes, the growth rate of the two sides of the nail is slow, the middle of the growth rate is fast, so you will see the nail meniscus at the root of the nail. Nail meniscus, belongs to the body’s normal tissue, but also a normal physiological phenomenon, and nail metabolism, nail growth faster, nail meniscus larger; metabolism slow, nail meniscus will become smaller, in addition, there are certain individual differences, if the body metabolism slows down or nutritional deficiencies, middle-aged and elderly people, etc., affecting the nail metabolism, the nail meniscus may reduce or disappear. If you have symptoms of discomfort, you should consult a doctor and follow the doctor’s instructions.