The choice of breast implant size depends partly on the surgeon's judgment, partly on the patient's wishes, and partly on the patient's specific anatomy. For every woman, there is a range of implant sizes that would be appropriate to use based on her own body dimensions and tissue characteristics. In other words, not all implants will "fit" the patient's chest wall, breast dimensions, and tissues in a satisfactory manner. Using an implant with a diameter that is too great, for example, can cause problems in the future. Your surgeon should be able to guide you as to the range of implants that could reasonably be used. Within that range may be several implant sizes that would do well in your body. I think it is critical for the surgeon to spend time with each patient in order to understand her goals and wishes fully. In my practice (my office is in Orange across from St. Joseph Hospital, by the way, very close to you), patients show me photos of their approximate desired fullness and shape. I take measurements of their breast width and other factors, and they try on specially designed sizer implants made by Mentor, one of the main implant companies. From all of this, my years of experience as a plastic surgeon allow me to determine the 2 or 3 sizes that would most closely achieve the desired look. I then take all of these sizes to the operating room with me. During the surgery, I insert a "sizer" implant of the same type as the implant that will be used, then sit the patient up to see how well the selected implant accomplishes our goals in THAT PATIENT'S BODY. Most of the time, we use the implant I thought we'd use before the surgery, but sometimes I choose a slightly larger or smaller implant to obtain the best results. Some surgeon's prefer not to spend the extra few minutes to do this, and instead make the patient commit to a specific implant before surgery, but I think it's absolutely worthwhile. The number one cause for revision surgeries in the first 3 years after augmentation is size change. In 16 years, I've had only a few patients who requested a size change after surgery.I don't like to discuss augmentation in terms of cup sizes, since cup sizes are very random and inconsistent. A woman may use a C cup in one bra, and a D cup in another bra. I ask my patients to focus on the LOOK they want to achieve, not the specific cup size, and I'll do my best to achieve that look. As I noted above, I've been incredibly successful with this approach.My office is in Orange, across from St. Joseph Hospital, very close to you. Please visit my website below and contact my office if you'd like to meet with me for a free consultation. I'll explain all of this to you in detail, and you'll leave feeling very confident in your decisions.Good luck!