The following are eight common abnormal features of nails. In these cases, remember to ask the doctor for a clear reason in time.

1. Changes in the number and shape of white crescent. Image source: Network

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.

Generally speaking, the size and quantity of each person's "crescent moon" are constant, and the health status cannot be judged by how many.

However, if the new moon:

The bigger it is, the more it may indicate that the body's metabolism is accelerating, and it is necessary to pay attention to hyperthyroidism; Getting smaller and disappearing may indicate that the body's metabolism is slowing down, so it is necessary to pay attention to hypothyroidism. Therefore, if the number or character of crescent moon changes greatly in a short time, it is best to go to the hospital for examination.

2. The curvature of nails increases. Image source: Internet

There is a condition called clubbing, which shows that the ends of fingers or toes become bigger. At the same time, the nails will also change, and the radian of the nail surface at the fingertips will increase significantly. This abnormal change often takes many years to form.

Clubbed fingers and corresponding nail changes may indicate:

Certain lung diseases; Intestinal inflammatory diseases; Some cardiovascular diseases; Liver disease and AIDS, etc. 3. Anti-Armor Image Source: Network

Anti-armour is also called "spoon nail". Nails sink like spoons and are soft. This "depression" can often hold a drop of water.

In most cases, the appearance of anti-armor may prompt:

Iron deficiency anemia; Hemochromatosis: liver disease caused by excessive absorption of iron from diet; Heart disease, hypothyroidism, etc. 4. Nail invagination Image source: Internet

There is a nail whose surface will have a linear depression. This line is medically called the beauty line.

Nail invagination may prompt:

Nail growth has suffered trauma, which can basically be understood as being "crushed"; Some serious diseases, such as diabetes and peripheral vascular diseases; Some diseases that can cause high fever, such as scarlet fever, measles, mumps and pneumonia; Zinc deficiency. 5. Uneven and dull nails Image source: Internet

If you find that the nail surface is a little bit like or irregular, it is white, dull and uneven. Or the nails are thick, broken, grayish yellow, grayish brown, or desquamation.

May indicate fungal infection, namely onychomycosis.

6. Nail peeling Image source: Internet

In many anti-Japanese dramas, revolutionary soldiers were tortured by the enemy to obtain information.

In fact, some diseases can also lead to nail peeling and separation from nail bed, which is called nail separation.

Stripped nails are often white, yellow and green, opaque.

Nail peeling often occurs in the following situations:

Trauma, forced separation; Infection, taking certain drugs or touching certain substances (such as adhesives, etc.). ); Thyroid diseases and psoriasis. 7. The nails are white with a narrow pink band. Image source: Internet

The nails look pale white and there is a narrow pink band at the fingertips. Nails that grow like this are called Terry nails.

This kind of nail usually has the following possibilities:

Normal old people will have this change because of aging; Liver disease, congestive heart failure, renal failure, diabetes, etc. 8. Yellow nail syndrome Image source: Internet

"yellow nail syndrome", nails will turn yellow, thicken and grow slowly.

Moreover, there may be a lack of skin at the root of the nail, just like the "molting" of the nail, or even the peeling of the nail.

Yellow armor appears, which may prompt:

Suffering from respiratory diseases, such as chronic bronchitis; Lymphedema-related diseases. I didn't expect so many healthy secrets to be hidden in a small nail.

This article is to give some simple references to old friends. If you find these abnormal changes in or around your nails, you should pay attention.

It is correct to ask a professional doctor to check the reason in time.