Why do nails grow back after they are cut off?

This is normal because the nail is a cuticle that is dead cells, and this occurs when cells are constantly piling up.

This is because our body is metabolized. Therefore, the nails will still grow naturally after being cut off.

Because this is a normal physiological reaction, we must look at it rationally.

Our nails are differentiated from epidermal cells, belonging to a kind of hard keratin, which is the attachment of **, the root of the nail is called the nail bed, the nail bed can control the shape of the nail, if the nail bed is damaged, the nail will also produce distortion. Because our body is constantly metabolizing, epidermal cells are constantly renewing, new keratin is constantly being produced, and nails are getting longer and longer, so we should trim our nails regularly.

There are many people who think that nails are useless, and it is very troublesome to cut nails, but nails have a protective effect on our fingers and toes, first of all, there are nerve endings all over us, if there is no protection of nails, it is easy to be injured, fingertips are very fragile, nails are like putting a hard hat on the fingers, just make up for the shortcomings of the fragile fingertips, hard nails can protect the fingertips from external damage and can also protect the fingertip nerves. At the same time, with the protection of our fingernails, our fingers will be more flexible when working, and the coordination of our limbs will be increased. Foot nails are also a principle to avoid fingertips rubbing against shoes.

The nail bed is the hotbed of the nail, the root of the nail is covered with small blood vessels, which also provides rich nutrients for the growth of the nail, generally in the summer when the human metabolism is accelerated, the nail will grow faster, when the weather becomes cooler, the growth rate of the nail will be relatively slowed down a lot, of course, this is not absolute, after all, the speed of nail growth and the individual's physical condition and genes are inseparable.

On average, fingernails grow 3-4 mm per month, and toenails grow 1-2 mm on the feet, and nails are not trimmed often and it is easy to harbor dirt in the nail seams, so it is best to trim our nails regularly every week. In general, the nail growth rate of the dominant hand will be greater than that of the other hand, and the growth rate of the middle finger nail will be faster than that of the other fingers, and the growth rate of the little finger nail is the slower.

The rate at which nails grow depends on many things, with age, health and season being variables. Hands are often exposed and work is done often, so fingernails wear more than toenails, but because of this, fingernails grow faster than toenails.

Because nails are epidermal cells, these cells will constantly undergo some metabolism, so they will grow slowly after cutting.

Nails are made up of keratin, which evolves from epidermal cells within the body. From birth to death, epidermal cells are constantly metabolizing.

Because this is a natural law of growth, and it is also a metabolism of the body's cells. After the nail is cut, it will continue to grow over time.

Why do nails still grow after they are cut.

Because the sub-organisms Ha has signs of life.