Acne occurs when the small pores on the surface of the skin become blocked with oil, dead skin cells, and bacteria. Each individual pore on the skin opens up to a follicle beneath the epidermis. Within these follicles lie a singular hair and a sebaceous gland. The sebaceous gland produces sebum, an oil designed to keep your skin lubricated and soft. However, when hormonal changes and other factors cause the gland to produce an excess of sebum, the oil will be pumped through the follicle, and may pick up dead skin cells and P. acnes bacteria on its way out. Should these substances clump together, a plug will form. As this plug starts to press up against the surface of the skin, the body responds with an accumulation of red and white blood cells to combat any infection, and this results in inflammation and redness. Acne can occur on the face, back, neck, chest, arms, and buttocks, and any other skin area with a saturation of sebaceous pores.
Some of us are more at risk for acne scars than others, although there is no way to say for sure who will develop scars after acne and who will not. These scars tend to occur more commonly after inflammatory acne, especially when it’s not treated early and aggressively. Other risks include picking squeezing or popping zits. (But whatever you do, never, ever pop a zit in the “danger triangle.”) Genetics can also play a role. “The earlier that acne gets treated, the better,” says Dr. Levine. “If somebody has active acne at 13 or 14, we want to jump on it.” Some scar resurfacing treatments also help keep acne at bay, she says. Dr. Imber adds that Youth Corridor RetinUltimate Transforming Gel applied twice daily can help treat active acne and prevent recurrence. Next, find out how to get rid of acne once and for all.
No one factor causes acne. Acne happens when oil (sebaceous) glands are activated at puberty, stimulated by male hormones from the adrenal glands in both boys and girls. Oil is a natural substance which lubricates and protects the skin. Under certain circumstances, cells that are close to the surface block the openings of sebaceous glands and cause a buildup of oil underneath. This oil stimulates bacteria, which live in everyone's skin and generally cause no problems, to multiply and cause surrounding tissues to become inflamed.