Acne can occur anywhere on skin, but is most common on the face, neck, chest, and back. It usually starts in the early teen years, when the oil glands in the body start making more sebum, but can last into or begin in adulthood, too.
Causes Of Acne:
- When the hair follicle becomes plugged with oil and skin cells, a “whitehead” forms in the hair follicle.
- If the follicle is plugged near the surface of the skin and air touches the plug, it turns black and is called a “blackhead.” A blackhead isn’t caused by dirt.
- If the wall of a plugged hair follicle breaks, the area swells and turns into a red bump. If the hair follicle wall breaks near the skin surface, the bump usually becomes a pimple.
- If the follicle wall breaks deep in the skin, acne nodules or cysts can form. This is called “cystic acne.”
