All right, that's sometimes a little bit more of a difficult one. Some people are getting this done for insurance, and insurance has guidelines for what they require. Usually those are very reasonable. It's based on studies of women who are a certain height, weight, and overall breast size. Most women in this category are looking to go to about a C cup, something that's a full breast that fits their body. So we rely on some of our research to give a good guideline.

Breast Reduction: How To Choose a Cup Size When Slimming Down

Sizing for a breast augmentation is simple when compared to sizing a patient for a breast reduction. Dr. Kamakshi Zeidler explains how the cup size is determined for a woman interested in a breast reduction.