This is sometimes true, especially in the case of hormonal teenage acne. But it is also possible for acne to persist into adulthood. In this case, women are mainly affected.* *Poli F, Dreno B, Verschoore M. An epidemiological study of acne in female adults: results of a survey conducted in France. J Eur Acad DermatolVenereol 2001;15:541-5. Hormonal changes (e.g. pregnancy) are triggers for acne breakouts, as well as UV radiation, dust and air pollution—all of which can influence acne. It’s important to react quickly and not to hesitate to consult a health professional in order to get good advice.