Acne developing tendency runs in people of families. If you find someone has acne, you will find other people in his family also have acne. The acne history of family is associated with the high number of the retention lesions of acne and the first appear of acne in family.
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Puberty, menstrual cycle and other hormonal activities may cause acne. Androgens ( hormones of male sex ) during puberty cause sebum and enlargement of follicular glands. Anabolic steroids also cause acne as it has the same effect as androgen. Hormones cause acne: IGF1 Insulin Growth Factor 1 DHT DiHydroTestosterone Testosterone androgens DHEAS DeHydroEpiAndrosterone Sulfate
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