what causes acne for teens
Acne is a common skin disease that causes pimples. Pimples form when hair follicles under your skin clog up. Most pimples form on the face, neck, back, chest, and shoulders. Anyone can get acne, but it is common in teenagers and young adults. It is not serious, but it can cause scars. No one knows exactly what causes acne. Hormone changes, such as those during the teenage years and pregnancy, probably play a role.