Tip - How to Remove Acne Pits | LIVESTRONG.COM

Different types of scarring form as a result of acne outbreaks. Scars can either be indentations in the skin or raised fleshy growths, known as keloids. The acne scars which are indented, or pitted, are given various names, depending on the shape they form. Ice pick and boxcar scars are small holes that are quite deep and steep. Rolling scars are...