acne develops most often in the teen and young adult years. during this time both males and females usually produce more testosterone than at any other time in life. this hormone causes oil glands to produce more oil (sebum). the extra oil can clog pores and cause acne. bacteria can grow in this mixture. and if the mixture leaks into nearby tissues it causes swelling redness and pus (pimples). acne usually gets better in the adult years when your body produces less testosterone. still some women have premenstrual acne flare-ups well into adulthood. webmd medical reference from healthwise this information is not intended to replace the advice of a doctor. healthwise disclaims any liability for the decisions you make based on this information. © 1995-2011 healthwise incorporated. healthwise healthwise for every health decision and the healthwise logo are trademarks of healthwise incorporated.
what happens to someone when they get acne vulgaris?