Epidemiology of Acne
Acne occurs when pores become blocked by dead skin or naturally occurring skin oils known as sebum. Blocked pores trap sebum under the skin surface, creating an inviting environment for bacteria growth. Bacteria causes swelling, and this swelling is acne.
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Types
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Many types of acne exist, but type each is categorized as either inflammatory or non-inflammatory. Inflammatory acne occurs when the follicular wall ruptures and white blood cells flood the pore. Papules, pustules, nodules and cysts are forms of inflammatory acne. Non-inflammatory acne occurs when bacteria trapped in pores becomes comedones, commonly called blackheads or whiteheads. Once non-inflammatory acne pops, it can drain and heal.
Causes
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While acne's cause is unknown, doctors have discovered several contributing factors. Hormone changes seem to be a major contributor. This is why teen-agers tend to be prone to acne and why women often experience premenstrual flareups. Greasy makeup, high humidity, pollution and certain medications, including birth control, appear to be contributors. Hereditary factors also may make some people more predisposed to acne than other people.
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Treatments
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Acne treatments range from organic to prescription. For inexpensive home remedies, people use lemon juice and green tea treatments. While common over-the-counter treatments include salicylic acid and benzoyl peroxide, prescription drugs such as adapalene or azelaic acid may be necessary for severe acne.
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