Is the crescent moon on the nail related to health? What does it matter?

Most people can see a white crescent-shaped area on their nails more or less, which is scientifically called "half moon" or "half moon mark", which is actually a natural phenomenon in the process of nail growth. The newly grown nails are white, and then they will gradually become transparent. Transparent nails will reveal the pale pink of meat. So the whiter the crescent moon, the newer the nails.

As for why it is crescent-shaped, it is because the middle of nails is made faster than the sides, so nails and nails are crescent-shaped arcs.

So don't think that your little crescent moon is too much, too big and too different, just because it is ordered by the king. Of course, if your crescent moon grows on your forehead, that's another matter.

Nowadays, many news channels point out that the small crescent on the finger has nothing to do with health.

In fact, this conclusion is only a small step from success. The complete and correct conclusion should be:

People's health should not depend on the number of "crescent moons", but on whether the "crescent moons" have undergone great changes recently. Some changes in the body, such as hyperthyroidism, hypothyroidism, aging, nutritional status, etc., will affect the "new moon." Generally speaking, the size and quantity of each person's "crescent moon" are constant, and it is not necessary to judge their health by this. -dividing line.

The core of Dr. Laila's answer to this question is two points:

First of all, the half-moon mark on the finger is not a sign of health.

The fallacy that more new moons are healthy and fewer new moons are unhealthy is widely spread. Judging from the comments and respondents' content, everyone is concerned about whether there is a crescent on the finger and whether it is healthy, so Dr. Lilac wrote this answer to this health fallacy.

Second, Dr. Lilac wants to send a message, that is, don't diagnose yourself according to the symptoms.

A little carelessness in this expression will easily lead readers to make inappropriate self-diagnosis according to the changes of their half-moon marks, which will bring a series of problems.

It is not only the most basic standard of medical diagnosis, but also the idea that medical science should always spread to the public. Therefore, in all Zhihu's answers, when it comes to diagnosis, Dr. Lilac asked the bosom friend to go to the doctor directly, instead of making a self-diagnosis according to the content of the article.

Doctors may notice subtle changes in the low incidence rate when discussing cases.

However, readers should never be encouraged to make self-diagnosis according to some low probability situations, especially vague symptoms.