Acne is a skin problem that occurs when the hair follicle or hair growth is blocked by oil and dead skin cells.
This condition is usually characterized by the appearance of spots on several body parts, like the face, neck, back, and chest. Although acne can be gotten by anyone, but most cases of acne occur during puberty, which is in teens aged 10-13 years, and getting worse in people with oily skin.
Acne in teenagers generally will disappear by itself at the beginning of the age of 20 years. But in some instances, there are still those who experience acne issues until age 30 years, especially women.