There is no such a thing as a single cause of any health problem. We can only talk about cofactors, causative agents and life situations that like pieces of puzzle interact with each other, and together promote a chain of events ending with a named set of symptoms and health problems & with Acne. Genes are always a factor of our health, but that is the only factor we can't do anything about. Genes only represent our predisposition & potential to encounter certain problem or disease. It is our life and our lifestyle as whole that makes the final decision on whether we are going to experience certain problem or not. The truth is, no illness and no disorder or any health problem is caused by a single factor!
The typical lesions of acne are: small whitish or skin-colored bumps whiteheads or blackish elevations blackheads. More inflammed rashes take the form of pus-filled, or reddish bumps, even boil-like tender swellings. After resolution of the lesions, prominent unsighty scars may remain.
The condition is common in puberty as a result of an abnormal response to normal levels of the male hormone testosterone. The response for most people diminishes over time and acne thus tends to disappear, or at least decrease, after one reaches the third decade of life. There is, however, no way to predict how long it will take for it to disappear entirely, and some individuals will continue to suffer from acne decades later, into their thirties and forties and even beyond.
Acne affects a large percentage of humans at some stage in life. Aside from scarring its main effects are psychological, such as reduced self-esteem and depression. Acne usually appears during adolescence, when people already tend to be at their most socially-insecure. For this reason acne should be treated if severe.