Why do my hands and feet wrinkle after soaking for a long time?

A soak in water on the hand is wrinkled, which is a common phenomenon in daily life, mainly due to the characteristics of the hand, that is, the stratum corneum of the hand is relatively thick and the sebaceous gland is relatively poor. **Attachments include sebaceous glands, sweat glands, hair, hair follicles, nails, etc., sebaceous glands are distributed in different parts of the human body and unevenly, such as the head and face are more abundant, while the palms and soles of the feet are relatively poor.

In addition, ** includes epidermis, dermis and subcutaneous adipose tissue, and the epidermis includes the basal cell layer, granulosa cell layer, muscle cell layer, clear cell layer and keratinocyte layer, and the keratinocyte layer on the palms and soles of the feet is relatively thick. When the hand is soaked in water for too long, because the epidermal cortex is relatively small, the water shielding force is weak, and the stratum corneum cells absorb a lot of water without any resistance, indicating that the stratum corneum cells of the hand are flooded with water. The dermis under the epidermis does not absorb more water, so it will show that the hand will be soaked in water for a long time, and there will be ** wrinkles.

The fingers have oil to protect the epidermis, and soaking the hands and feet in water for a while will cause the oil to bubble off, so the cells absorb water until they become edema or wrinkle.

Wrinkling of hands and feet after a long time is a normal reaction, and it is one of the life-saving skills that has been retained in the evolutionary process. When we inadvertently fall into the water, sometimes we need to climb to the shore immediately, and at this time, wrinkled hands and feet can increase friction and make it easier for us to climb ashore with the help of stones and other things on the shore.

Our fingers and toes have a thicker layer of cuticles than those of the rest of the body. When soaked in water for a long time, these stratum corneums begin to absorb a large amount of water, which is equivalent to 6 times the weight of the stratum corneum itself. When the stratum corneum is rich in moisture, it is easy to show a whitish and wrinkled phenomenon.

The reason why the hands and feet are wrinkled after soaking for a long time is because it will cause too much water to enter our stratum corneum, so the stratum corneum will easily show a whitish and wrinkled phenomenon after it is rich in moisture. Most people will have this situation, but there are some patients with primary ** disease, he will be more likely to manifest, for example, there is palpital foot dermatosis, or patients with palmoplantar keratosis, his stratum corneum has hyperkeratosis, and some even have the problem of poor keratosis, so after a slight contact with water, it will be easy to show the problem of local whitening and wrinkling. To solve this problem, we must first go to the hospital to find a doctor for a consultation, and the doctor will do some trace element testing to see if there is a deficiency?

If there is, it needs to be supplemented accordingly, and do not soak the water for too long when washing your hands, especially the water with some alkaline detergents, so as not to soak it to avoid adverse consequences.

Why do my hands and feet get wrinkled after soaking for a long time? The main reason is that after the hand is soaked in water, the stratum corneum on the surface becomes soft and thickened after absorbing water, and the local surface area increases, accumulating on the surface to form a wrinkled appearance.

Generally, there may be mild wrinkles in the hands when soaked in water, but the manifestations of hand diseases are more obvious, such as chronic dermatitis, eczema, etc., resulting in damage to the barrier function of the hands, especially the loss of sebum film on the surface. The sebaceous membrane can play a role in isolating the contact between the stratum corneum of the hand and the external moisture, reducing the degree of water absorption of the stratum corneum of the epidermis of the hand, and the hand is not easy to wrinkle. If the hands are dry or suffer from related diseases, the sebaceous membrane is missing, and the stratum corneum can be directly in contact with water, which is easy to absorb water, resulting in thickening, swelling, and increased epidermis of the stratum corneum, causing obvious wrinkles.

Over time, the stratum corneum will soak, soak, peel off, and even form small exfoliating surfaces.

If your hands are wrinkled after soaking in the water for a long time, you don't need to worry, your hands will return to normal after a while after they leave the water.

When the hand is left in water for a period of time, the blood vessels in the subcutaneous tissue at the fingertip area will shrink, resulting in a decrease in volume, because the surface area of ** remains the same, so there will be folds.

Another study found that finger wrinkling is the result of blood vessel contraction, which is a response of the autonomic nervous system, which is an active process, rather than a passive response after water absorption, as previously believed.

Because the fingers and toes are controlled by the autonomic nervous system (also known as the autonomic nervous system), when the autonomic nervous system is soaked in water for a period of time, the autonomic nervous system will send instructions to make the subcutaneous tissue of the finger tips and toe tips constrict, and the volume will be reduced, while the surface area of the fingers and toes will remain unchanged, so the folds will appear.

Wrinkles on the fingers can help humans better grasp objects in the water (such as fish) because the wrinkled fingers are actually used to expel water to enhance the friction of the fingers; And the wrinkles on the toes can help humans walk better in the water, because the wrinkles are equivalent to the lines of the tire, which can make it easier for the water to flow down the ravine, so that a negative pressure band is formed, which increases adhesion.

Human ** is divided into epidermis, dermis and subcutaneous tissue, and the epidermis is divided into stratum corneum, transparent layer, granular layer and so on. The stratum corneum is the outermost barrier and an important component.

When the ** of the hands and feet is soaked in water for a long time, the stratum corneum is soaked and begins to be a little soft, because the proportion of swelling in different places is different, and there are some places that are convex and some places are concave, which looks wrinkled. This phenomenon is normal for the human body, and it will recover quickly after leaving the water.

When we swim in the bath, or do laundry, the ** of our fingers and toes will be wrinkled. Only the soles of the feet and fingers will react to this reaction, presumably to increase the friction of the hands and feet in water or humid environments.

I believe we all have this experience, our hands and feet have been soaked in water for a long time, and small wrinkles will appear dense or sparse. When I was a kid, adults would tell us that it was because your fingers were blistered. That's how it is when the skin is wrinkled.

I often hear mothers complain that their hands are wrinkled when they wash clothes.

When someone explains from a biological point of view, everything is smooth underwater, and in order to be able to adapt to such an environment, our body has such changes. The folds of the hands and feet make our ** more frictional and more suitable for underwater activities. In fact, this is the trivia that we have been ignoring.

The reason why our fingers are wrinkled, if we want to say that it is the pot of the **, it is really wronged him.

What really happens to our hands and feet is that our subcutaneous nerves, nervous system and other systems are different from other systems, and we can't actively control them. Just like our breathing, heartbeat, and sweating, these systems are self-contained. Scientists found out back in the 30s.

People with finger nerve problems will not wrinkle their fingers. Later, some people also did experiments, and if the finger nerve was severed, there would be no wrinkling.

Water relaxes and softens tissues. The ** on the hand is actually a thin layer of oil, these oils are used to help everyone directly absorb water from the outside world, and who will become dissolved after encountering it, so there will be wrinkles!

There are two theories about this ......

Because water has the effect of relaxing and softening tissues.

Our ** is actually covered with a thin layer of grease, in order to prevent ** from absorbing water directly from the outside. However, when we soak in warm or hot water for about half an hour, this layer of grease will be removed by warm water, so it will begin to absorb water. Our **surface is an epidermal layer, and below the epidermis is the dermis layer; The epidermis is not completely tightly bonded to the dermis, and the epidermis is only tightly bound to the dermis by connective tissue in some areas, but not in others; Therefore, when the epidermis absorbs edema, the binding place is confined and concave; From the outside, the surface of the ** is concave and protruding, like wrinkles.

Since the palms and toes of the hands and feet are the thickest part of the epidermis of the whole body, the phenomenon of wrinkles is obvious. **Other parts of the body should also have this effect, but it is less likely to be detected. If you soak in water for too long, the epidermis absorbs water and swells, so it becomes wrinkled. In the past, some women specialized in washing clothes for others, their hands soaked in water for a long time, and their fingers were often wrinkled, which became an occupational disease (should be said to be a characteristic).

Another way to put it:

Since the concentration of fluid in the body is higher than that of fresh water, when the fingers are immersed in fresh water for a period of time, water will flow into the epidermal cells, and the cells will swell and deform.

On the contrary, since the concentration of fluid in the body is lower than that of seawater, when we swim in the sea, water will flow out of the epidermal cells, and the cells will shrink and deform.

In addition, there are bundles of elastic proteins at the bottom of the skin that are tightly adhered to the epidermal cells, resulting in uneven contraction or swelling of the fingers, resulting in wrinkled skin.