Iqra4 months ago

What causes acne scars?

When large pus-filled acne cysts penetrate deep in the skin, they damage the surrounding skin tissue. If not enough collagen is produced during the healing process, an indentation (scar) is left on the skin. If too much collagen is produced, scarring can be lumpy, known as “hypertrophic” or “keloid” scarring. These scars often occur on the chest and back.