It is a chronic inflammatory disease of the sebaceous glands (the oil-secreting glands) and the hair follicles which usually occurs in adolescents of both sexes. It is characterized by whiteheads, blackheads and pustules. Scarring is common and is usually associated with an oily discharge.
The cause is not fully understood, but the probable causes can be:
- Hormonal imbalance esp. during puberty
- Improper diet
- Drugs like corticosteroids