Acne scars fall under two broad categories: depressed scars and raised scars. Depressed acne scars: Also known as atrophic acne scars, these are the most common type of acne scars. They develop ...

You can have raised acne scars or depressed acne scars. Raised scars, or hypertrophic scars, are exactly what they sound like: thick or lumpy scars that sit on top of the skin. Meanwhile ...