
Summary
Acne is a common skin disease that causes pimples. Pimples form when hair follicles under yourskin clog up. Most pimples form on the face, neck, back, chest, and shoulders. Anyone can getacne, 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 teenageyears and pregnancy, probably play a role. There are many myths about what causes acne.Chocolate and greasy foods are often blamed, but there is little evidence that foods have mucheffect on acne in most people. Another common myth is that dirty skin causes acne; however,blackheads and pimples are not caused by dirt. Stress doesn't cause acne, but stress can make itworse.
If you have acne:

