What’s acne?
Acne is a term that’s used to describe whiteheads, blackheads, and pimples. Most teenagers get the type of acne called acne vulgaris, which can show up on the face, neck, shoulders, back, and chest. Skin pores contain oil glands which naturally lubricate your skin and hair. But sometimes if a pore gets clogged beneath the skin with excess oil and bacteria, the dreaded acne is caused...
Whiteheads happen when a pore gets clogged, closes, and then bulges out. If a pore gets clogged but stays open, the top may darken and you've got a blackhead. A pimple happens when dead skin and bacteria work their way under live skin. This leads to a small infection that makes your skin look red.
What causes acne?
Although everyone is different, acne is usually caused by the build up of oil and dead skin in a pore. This build up of oil and dead skin is caused because of:

• Natural hormones. These are particularly active in your teens.
• Plugged skin. Lots of skin cells can close the oil glands or pores, creating blackheads or whiteheads, (as mentioned earlier).
• Bacteria. Bacteria can easily infect oil glands and pores and grow very quickly.
• Family background. If you have acne, your kids are more likely to have it too