Acne scars are the result of inflammation of acne blemishes. The acne pore swells and a breakdown occurs in the wall of the pore. Some acne blemishes are small and the scars created are shallow and heal quickly. Sometimes the contents of blemishes spill into the surrounding tissue and cause deeper scars. The skin’s response is to repair the scar by forming new collagen fibers. Acne scars take on two main forms: either a scar develops when there is a loss of tissue, resulting in an indentation in the surface of the skin; or, a scar develops that is raised on the surface of the skin. This type of acne scar, in fact, is a sign that your skin is doing its job — but, perhaps, too well. Your skin creates collagen (“repair tissue”) to help heal the wound — the acne — but, if it makes too much collagen, raised scars form.