Decoding the crescent shape on nails

Although crescent-shaped nails are not always a cause for concern, in some cases they are a 'hidden' health warning.

The crescent-shaped tissue lies at the base of the nail and covers the underside of the nail, just above the cuticle. This layer of tissue located just under the nail contains nerves, lymphatic vessels, blood vessels, and produces hard cells for the nail, according to Healthline .

In healthy people, the crescent is usually pale white and occupies a small part of the nail bed. It is most noticeable on the thumb, while on the index finger the crescent is usually smaller and gradually smaller, even invisible on the little finger. However, sometimes, the change in color of the crescent on the nail is a sign of underlying health problems.

Oral medication

Tetracycline, an antibiotic used to treat acne and skin infections, can cause the crescent-shaped nail to turn yellow if used for a long time.

Tetracycline can cause the crescent-shaped nail to turn yellow.

Illustration: AI

Metal poisoning

If the crescent shape of the nail is blue-gray, it may be due to silver poisoning.

Yellow nail syndrome

The nail usually thickens and grows slowly. The middle part of the nail begins to rise, causing the crescent to disappear completely, then the entire nail turns yellow.

Terry's Nails

The nails are white and the crescent shape is not visible. Near the tip of the nail, a pink or red line appears, not just on one but on the entire nail. In older people, it is usually due to natural aging.

Wilson's disease

A rare genetic disorder that occurs when too much copper builds up in the body, resulting in a blue crescent-shaped discoloration of the fingernails.

If the nail changes are accompanied by other unusual symptoms, see your doctor. With prompt treatment, the nail shape and color will usually return to normal, which can improve overall health.

Source: https://thanhnien.vn/giai-ma-hinh-ban-nguyet-o-mong-tay-185251201211744218.htm