"Acne occurs when oil glands within the skin become plugged. The medical term for oil is sebum and the term for oil gland is sebaceous gland. The most active sebaceous glands are most acne-prone and are located on the face, back and chest. Sebaceous glands are attached to every hair follicle on the body. A follicle is a tiny, almost invisible, cavity in the skin out of which hair grows. Normally, sebum flows out of the sebaceous gland, up through the follicle and out a pore to the skin?s surface.
Acne occurs when this path gets blocked and sebum cannot reach the skin?s surface. The main contributors to blockage formation are sticky follicle skin scales and thickened sebum. Normally found in follicles, a bacterium called P. acnes grows excessively in acne-prone skin and alters follicle skin scales and sebum contributing to follicle blockage and pimple formation.
The factors that most influence the tendency to develop acne during puberty are hereditary and hormonal. Foods and cleanliness play little if any role. Stress can make acne worse and sunlight, though damaging to the skin overall, may temporarily improve acne.
Due to the dramatic hormonal changes that occur during puberty, the onset of acne is most common during the teenage years. Acne, however, is not merely an adolescent issue. Adults can also experience the onset of acne.
There are many reasons adults develop acne. These also often include a mix of hereditary, stress related and hormonal factors. Although some adult men suffer from acne, adult women are much more likely to develop adult onset acne. Conditions such as pregnancy, hormonal irregularities in the menstrual cycle, and ovarian cysts may all contribute to a woman developing acne.
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