Acne vulgaris (commonly called acne/pimple) is a common skin condition, caused by changes in pilosebaceous units, sebaceous unit consist of a hair follicle, and sebaceous gland. Androgen stimulates the sebaceous unit and increases its activity as a result it helps formation of acne. It is characterized by noninflammatory follicular papules or comedones , inflammatory papules, pustules, and nodules. Acne vulgaris affects the face, upper part of chest, and back.
Acne is most common during adolescence, affecting more than 85% of teenagers, and frequently continues into adulthood. The cause in adolescence is generally an increase in male sex hormones, which people of both genders accrue during puberty. For most people, acne diminishes over time and tends to disappear .However, there was no way to predict how long it would take to disappear entirely. www.manuscriptedit.com
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