What Causes Acne?
Myths About the Causes of Acne
There are many myths about what causes acne. Chocolate and greasy foods are often blamed, but research has shown that foods seem to have little effect on the development and course of acne in most people. Another common myth is that dirty skin causes acne; however, blackheads and other acne lesions are not caused by dirt.
However, is knowledge; if you know what causes acne, it’s easier to formulate a good plan of attack. There are five primary culprits contributing to this process.
- Acne Causes - Culprit #1: Hormones. For the majority of acne sufferers, the trouble begins at puberty, when the body begins to produce hormones called androgens. These hormones cause the sebaceous glands to enlarge, which is a natural part of the body’s development. In acne sufferers, however, the sebaceous glands are overstimulated by androgens, sometimes well into adulthood. Androgens are also responsible for acne flare-ups associated with the menstrual cycle and, on occasion, pregnancy.
- Acne Causes - Culprit #2: Extra sebum. When the sebaceous gland is stimulated by androgens, it produces extra sebum. In its journey up the follicle toward the surface, the sebum mixes with common skin bacteria and dead skin cells that have been shed from the lining of the follicle. While this process is normal, the presence of extra sebum in the follicle increases the chances of clogging — and can cause acne.
- Acne Causes - Culprit #3: Follicle fallout. Normally, dead cells within the follicle shed gradually and are expelled onto the skin’s surface. But in patients with overactive sebaceous glands — and in nearly everyone during puberty — these cells are shed more rapidly. Mixed with a surplus of sebum, the dead skin cells form a plug in the follicle, preventing the skin from finishing its natural process of renewal.
- Acne Causes - Culprit #4: Bacteria. The bacterium Propionibacterium acnes, (P. acnes for short) is a regular resident of all skin types; it’s part of the skin’s natural sebum maintenance system. Once a follicle is plugged, however, P. acnes bacteria multiply rapidly, creating the chemical reaction we know as inflammation in the follicle and surrounding skin.
- Acne Causes - Culprit #5: Inflammation. When your body encounters unwanted bacteria, it sends an army of white blood cells to attack the intruders. This process is called chemotaxis; or, simply put, the inflammatory response. This is what causes pimples to become red, swollen and painful. The inflammatory response is different for everyone, but studies have shown that it is especially strong in adult women.
SOURCE: The Causes of Acne