Age
Acne is the most common skin problem in teenagers. However, this doesn’t mean that adults cannot have acne. People of any age group can have acne. But mostly acne goes away by the age of 30. Acne starts from the age of 10 to 13, but in some cases adults after the age 25 keep on getting pimples and zits because of oils skin. Having a family history with acne can cause acne even after 40. Acne can occur in newborns; it is believed that this happens because of the hormonal changes in the mother during pregnancy. But this acne goes away with the passage of time and doesn’t leave acne scars.