Question

why do acne and pimples appear during adolescene period?​

Answer 1

Answer:

These bumps can be blackheads, whiteheads, pimples, or cysts. Teens get acne because of the hormonal changes that come with puberty. ... As the body begins to mature and develop, though, hormones stimulate the sebaceous glands to make more sebum. Pores become clogged if there is too much sebum and too many dead skin cells.

Answer 2

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During adolescence period, both sweat glands and sebaceous glands become more active specially on the face. This leads to appearance of acne and pimple on the face.