Sometimes in the form of inflamed red lesions that evolve into whiteheads (pustules due to superinfection) or deep red, painful cysts.
It is common for one person to suffer from these different types of acne simultaneously, with the risk of scarring, especially when the lesions are "manhandled" !
You know that acne can affect different parts of the body:
The face
The back or torso
The shoulders and neck
Some people develop a great many lesions, and others relatively few. It all depends on genetic factors that determine each individual's sensitivity to the hormones (androgens) whose concentration in the blood rises sharply during puberty ? a veritable hormonal upheaval !
The condition generally improves at age 18 to 20, but acne is not uncommon later in life, especially among women (after age 25 or 30) due, at least partially, to the use of certain types of oral contraceptives.