1. What are scars and why do they appear?
rtgreerre
A scar is the body’s natural healing response to replace lost or irreversibly damaged skin. In cases of severe damage, the skin cannot restore itself to its previous condition. Scars may result from infections, surgery, injuries, or inflammation of tissue, burns.
The new tissue that replaces normal skim is of a harder texture, different color, etc. This is called a scar.