Enlarged pores are one of the five changes that skin undergoes as a result of sun-damage (the others being spider veins, brown spots, wrinkles and sagging skin). We have enlarged pores on our face to begin with, relative to the rest of our skin. These pores can respond to hormonal changes making them produce more oil, and leading to acne during the teenage years-and well beyond. I have a number of patients that didn’t have acne as teenagers, only to get acne and rosacea as adults. Unfortunately, adult acne is more common than most people think. The sun seems to be the biggest culprit in causing enlarged pores, and also contributes to overactive oil glands. Typically our pores get largest on our nose, cheeks, forehead and chin.