We may be more or less injured. When the wound heals, you will feel itchy. Why? Today, let's see why the wound heals with Xiaobian.
Why can you feel itchy when wound heals? Why does wound healing feel itchy
It turns out that the human skin is divided into multiple layers. At the bottom of the epidermis, there is a layer of cells called germinal layer. This layer of cells has strong vitality and can continuously grow and reproduce. The superficial wound of skin damage is based on the germinal layer. In the process of growing well, because the wound is very shallow, the nerve can not get any stimulation, it is not likely to have itching feeling, and there is no scar after growing well.
Welcome to [Sihai wechat: www4hw]
Why can you feel itchy when wound heals? Why does wound healing feel itchy
In the process of wound healing, there is a new kind of connective tissue, which is called deep wound healing.
The new blood vessels and nerves grow into the connective tissue. Because the blood vessels growing into the connective tissue are very dense, it is easy to stimulate the new nerves crowded with them when they grow rapidly. Nerve is very sensitive, especially the new nerve, slightly stimulated, will produce itchy feeling. When the wound is completely healed, the new nerve is less sensitive to stimulation and does not feel itchy.
Welcome to [Sihai wechat: www4hw]