Acne: Who gets and causes
Who gets acne?
If you have a bad case of acne, you may feel like you are the only one. But many people have acne. It is the most common skin problem in the United States. About 40 to 50 million Americans have acne at any one time.
Most people who have acne are teenagers or young adults, but acne can occur at any age. Newborn babies can get acne. Men and women get acne. Some women get acne when they reach middle age.
What causes acne?
Acne appears when a pore in our skin clogs. This clog begins with dead skin cells. Normally, dead skin cells rise to the surface of the pore, and the body sheds the cells. When the body starts to make lots of sebum (see-bum), oil that keeps our skin from drying out, the dead skin cells can stick together inside the pore. Instead of rising to the surface, the cells become trapped inside the pore.
Sometimes bacteria that live on our skin, P. acnes, also get inside the clogged pore. Inside the pore, the bacteria have a perfect environment for multiplying very quickly. With loads of bacteria inside, the pore becomes inflamed (red and swollen). If the inflammation goes deep into the skin, an acne cyst or nodule appears.