How does your skin grow back when you get a cut or injury? How does your body know?
In: Biology
So when you have an injury that physically alters your body, such a bruise or cut, your body has two responses one of which is a chemical signal that calls white blood cells and platelets to move to the area of interests. The white blood cells attempt to quell any possible foreign entities from your body that may cause an infection and the platelets begin clotting the cut. The scab both helps to keep the cut closed and prevent future infection. Afterwards the cells around the cut attempt to bind back again to themselves from underneath the scab. Interruptions and different factors can lead to an over expression in younger skin cells which cause scarring.
I’m sorry this is a very, almost juvenile explanation, that may not answer your question
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