It was pointed out in our previous answers, what a wonderful machine human body is! One of the major traits of body is – Ability to heal itself.

As soon as there is a cut on the skin, blood starts coming out of the blood vessels. A protein called Fibrin (present in blood) starts forming long fibrous structures or composite proteins. 

These proteins in a way kind of weave the clot, this formed clot covers the wound and closes blood flow.

Along with the formation of a blood clot, white blood cells also come in the wound and attack the bacteria that enter and destroy them and hence protecting body.

The cells begin to split quickly on the edges of the cut under the clot and make cover over the cut. Within four to five days, this creates a new layer of skin and the old dry scalp gets removed.