Acne is a combined term that is used to describe a number of
skin conditions, like blackheads, blemishes, lumps, and
whiteheads. Teenagers and adults can have acne. Stress, hormonal
activity, bacteria, steroids, and overactive glands can cause
acne. When we think of acne, the picture that comes to our minds
is that of an adolescent, who is physically changing from a
child into an adult. However, acne is not restricted to
juveniles only. Both adult and juvenile acne are infections
generated by the same bacteria.