Do areolas shrink when you lose weight?

Thank you for your question.It is likely that as you continue on your path toward a healthier life through #weightloss and #exercise that your #areolas may shrink in appearance.  If you are not satisfied and begin to consider surgery, #weight needs to be considered when deciding to operate on a patient.
Studies have shown that patients with BMI > 30kg/m sq (placing them in the
obese category) have a higher complication rate. It is important for patients
to be as close to their normal body weight prior to surgery. Not only will this
decrease their risks of #complications, but will also enhance their #aesthetic #results. Normal body weight is different from one patient to another.Best of luck.

Yes, I would expect the areola skin to decrease in size as your overall chest wall skin "envelope" decreases in size with weight loss.  I would suggest that you continue on your healthy lifestyle approach; hopefully, you will be pleased with the appearance of your chest wall and areola size once you have reached your long-term stable weight. Best wishes.