Infantile and juvenile acne, which mainly affects males, presents as facial acne at around 3-24 months, and may last up to 5 years of age. Acne are more localized than in adults and particularly affect the cheeks. The individual lesions include not just comedones, papules and pustules, but also both nodules and scarring may be found. It is thought that juvenile acne initially results from transplacental stimulation of the adrenal gland, as most sufferers have elevated plasma adrenal androgens, but it is uncertain why the acne lasts for up to 5 years.
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