It is true that heavier implants stretch the muscle and skin more, and may bottom out more easily due to weight, especially in patients with skin laxity. An in-person consultation allows us to take measurements and inspect the skin laxity for the ability to take a larger implant. Note that you have some asymmetry of your breast hang on the two sides and this would be addressed in the discussion as to what options we have for improving the symmetry with and without a small lift.As for implant style and size, often the widest implant that fits the patient's base diameter and is within the volume range the patient seeks would be best; if a patient selects an unnecessarily narrow or excessively high profile implant, she may end up with wide cleavage or implants that can move too much in the pocket. However, it also depends on the type of projection being sought. In general, implant volume is determined by a combination of estimating the patient's own breast volume and the target cup sizes, and determining a range of added cc's of volume that would be expected to achieve the goal. Implants come in a variety of "profiles," which is a term that describes how much of the volume is used to create width vs. forward projection of the breast. Moderate profile implants are wider and flatter, while high and ultra high profile implants are narrower and taller, and "moderate plus" implants are somewhere in between. A patient with a very narrow chest wall and little native breast tissue is often a good candidate for a high profile implant, whereas patients with a lot of native breast tissue and a wide chest may do better with a moderate or moderate plus implants style. During consultation, your surgeon will take breast measurements including the chest wall, and will look at whether you need a lift, areola reduction, or other approaches, as these can also impact the implant size that will give you the best result. There is no "cookie-cutter" approach to sizing for breast implants to achieve a "natural" look, or even a "done" look. Because breasts have significant variability, depending on native breast volume, shape, nipple position, descent (or "sag"), and symmetry issues, what one patient considers natural may differ from another patient's perception. It is therefore very important to try to explain your cosmetic goals to your plastic surgeon during your consultation. Pictures of models illustrating your ideal breast appearance can be helpful, but be careful not to assume that there is any guarantee of getting the exact same look. Many patients who end up with an "unnatural" look do so because of poor communication regarding their goals preoperatively. But there are also intraoperative and some postoperative factors that can contribute to the appearance. The dissection of the implant pocket by the surgeon is the most "controllable" factor in determining the final appearance. Using overly large implants for the patient's chest wall measurements can contribute to an unnatural outcome. In addition, the placement of implants over the muscle may make them more visible and detectable, particularly in patients with relatively small preoperative breast volume. The surgeon must take care to make a well designed pocket for the implant - not too spacious, and not too tight - and this step is often aided by careful preoperative marking and review of photographs. Because of these variables, we use surgical simulation software (Crisalix) in the office to simulate the effects of different styles, sizes, manufacturers, and even positions of the implants, which helps take a lot of guesswork out. This is typically combined with the use of a sizing kit designed by the implant manufacturer. The kit has a variety of inserts that the patient can put into her bra or into a tight fitting top to simulate the effect of augmentation with various-sized implants. When combined with simulation software, this helps us agree on implant size, style, manufacturer, and other variables. We rarely have to revise our own breast augmentation patients for size as a result of this careful planning. However, we are often called on to perform revision breast augmentation on patients who had surgery elsewhere.