acne
Acne is also known as the common acne (acne vulgaris) is an inflammation of the skin disease caused by a bacterial infection that results in changes in the pilosebaceous units (skin structures consisting of hair follicles and associated sebaceous gland).

Acne is generally caused during puberty and is considered an abnormal response. Acne affects a large number of people at some point in their lives. The most common form, acne called acne vulgaris, acne refers to the Common. This is a series of excessive secretion of the sebaceous glands combined with skin cells blocking the hair follicles die. Sometimes also a flaw in the process ceratinization skin, which causes abnormal leakage from the pores of the skin layer.

Under the clogged pores occurs secretion of fat that provides the perfect space for epidermal Propionibacterium acnes bacteria, and cause infections in the pores to remove pus, causing acne to multiply uncontrolled. In response, the skin becomes inflamed causing visible injuries. Face, chest, back, shoulders and arms the most affected. In addition to visible scars, acne usually appears in adolescence, when teenagers tend to be least secure. Acne can be very annoying with pain in the skin pores and be traumatized for aesthetic reasons.

No one knows why some people get acne and others not, but some known hereditary.
Several factors associated with acne:

* Hormone activity, such as menstrual cycles and puberty.
* Stress, driven by the release of the adrenal gland.
* Hyperactive sebaceous glands, secondary hormones listed below.
* The accumulation of skin cells to die.
* Bacteria in the pores, the body becomes allergic.
* Use of anabolic steroids.
* Skin irritation or scratching any form activate inflammation.
* Some medications (see Types of Acne)
* Exposure high levels of chlorine compounds.