What is Acne?

Acne is a skin condition that shows up as different types of bumps. They include whiteheads, blackheads, red bumps (pimples), and bumps that are filled with pus (cysts). What causes these annoying bumps? Well, your skin is covered with tiny holes called hair follicles, or pores. Pores contain sebaceous glands (oil glands) that make sebum, an oil that moistens your hair and skin.

Most of the time the glands make the right amount of sebum, and the pores are fine. But sometimes a pore gets clogged up with too much sebum, dead skin cells, and germs called bacteria. This can cause acne.

If a pore gets clogged up, closes, and bulges out from the skin, that's a whitehead. If a pore clogs up but stays open, the top surface can get dark and you're left with a blackhead. Sometimes the walls of the pore are broken, allowing sebum, bacteria, and dead skin cells to get under the skin. This causes a small, red infection called a pimple. Clogged-up pores that open up deep in the skin can lead to bigger infections known as cysts.

You can check pictures of acne here