Scarring is a natural part of the body’s healing process. Most wounds, except for very minor ones, result in some degree of scarring. Scars form when the skin is damaged and the body forms new collagen to mend it. The scar has a different texture and appearance than the surrounding tissue. There are different kinds of scars but the majority are flat and pale. However, in cases when the body produces too much collagen the scars can be raised. These tend to be more common in younger and dark-skinned people. Other scars can have a sunken appearance when some of either the supporting fat or muscle below the skin is lost.
Stretch marks are also a form of scarring and they form when the skin is pulled by rapid growth or stretching. Although skin is fairly elastic, when it’s overstretched the normal production of collagen is disrupted and a stretch mark may form.