In other cases, acne may not present itself until adulthood. Such acne is more likely to affect females than males. There are several reasons for this. As females get older, the pattern of changes in hormones may itself change, disposing sebaceous glands to develop acne. Ovarian cysts and pregnancy may also cause hormonal changes that lead to acne.
Some women get acne when they discontinue birth control pills that have been keeping acne at bay.
Sometimes young women may wear cosmetics that are comedogenic-that is, they can set up conditions that cause comedones to form. A. Acne is not caused by food. Following a strict diet will not, clear your skin. While some people feel that their acne is aggravated by certain foods, particularly chocolate, colas, peanuts, shellfish and some fatty foods, there is no scientific evidence that suggests food causes or influences acne. Many patients feel that sunlight improves their acne lesions and go to great lengths to find sources of ultraviolet light.