Undergoing a breast reduction may provide significant benefits, including relief from physical discomfort caused by the weight of large breasts, such as back, neck, and shoulder pain. It can also enhance your confidence and make clothing fit better, offering a more balanced and proportionate look to your body. However, it's important to understand that while you may desire a specific cup size, predicting an exact cup size after surgery is not always guaranteed. Cup sizes can vary between different bra brands and styles, and factors such as breast shape, band size, and overall body proportions also influence how your breasts will look after the reduction. Surgeons typically focus on achieving a more aesthetically pleasing and proportionate shape, rather than targeting a specific cup size. The goal of breast reduction surgery is to remove excess tissue, reduce breast size, and lift the breasts to improve their shape. The areola will also reduce in size and be more appropriately positioned on the breast mound. It is important to have a conversation about relative size with your surgeon during your consultation. While many patients experience a reduction in breast size of about 50% from their pre-surgery volume, the result will depend on your individual anatomy and the surgeon’s approach. I typically use the 50% as a reference to see if this is “too big, too small, or just right” for the patient’s expectations. Your surgeon will discuss the desired outcome, considering factors like your body type and goals, but cup size alone shouldn't be the primary focus. The focus should be on achieving a comfortable, natural, and well-proportioned breast shape that enhances your overall appearance and alleviates discomfort. Krishna Vyas, MD, PhD, MHSHarvard, Hopkins, & Mayo Clinic Trained Aesthetic Plastic SurgeonNew York, New York