If you have oily skin,you could develop little blackheads or pimples
on and around the areola.The breast
skin is the same as any other part of
skin on your body/face and subject to acne,pimples etc. My best advice would be to leave these bumps alone,because you could cause an infection if you try to pop them.Keep the area clean and wash with an anti bacterial soap and see if these bumps go away in a week or two.If not, see a dermatologist's for some sort of treatment.
Take care..