Acne, also called “zits” or “breaking out,” usually
consists of different types of bumps on the skin.
The most common are pimples, blackheads, and
whiteheads. Severe acne can cause deeper bumps,
called cysts or nodules. Acne can appear on the face,
neck, shoulders, chest, and upper back. Acne ranges
from mild to very severe. Severe cases of acne can
cause permanent scars.