The best way to determine the size that fits your personal perception of the perfect breast is to try on sizers. This way you can see how they fit on you, how they add to your current volume, and whether they fit your frame. Although the surgeon can guide you, only you will be able to tell what is the right size. Try on sizers. HP implants, which are a more modern shape than moderate profile implants, fit most women better. They have a more appropriate base diameter for the average women's chest. Mentor HP profile saline implants have base diameters that range from 8.8 cm (very narrow) to 13.8 cm (moderately wide). The majority of women in my practice have base diameters in the 11 to 13 cm range. The HP implants fit them well. The moderate implants have much wider base diameters for the same volume (often in the 14 to 15.6 cm range). These implants are too wide for most women that I treat. So when the base diameter is measured and correlated with the diameter of the implant, it is most often necessary to use HP implants to achieve the volume the patient is requesting. At the volume selected, my patient's base diameters are too small for moderate profile implants. Measuring a diameter and then telling the patient what volume they can have (in high, moderate or moderate plus implants) in my mind is backwards. The patients should be allowed to choose the volume. Then the surgeon carefully considers the base diameter, projection, profile, manufacturer, and fill material that will achieve the patients goals of size as well as qualitative look (natural, intermediate, or bold upper pole fullness or projection), all the while taking into consideration the patient's anatomic features that will affect the outcome. HP implants can be made to look very natural or very augmented, depending on where in the range the implants are filled to achieve a particular volume. At the low end of the fill range, HP implants do not have the upper pole fullness that most people associate with the fake look. On the other hand, a fake over-augmented look can be created with a moderate profile implant if it is overfilled (a common practice for surgeons that commonly use moderate profile implants). In addition, too wide an implant will put the volume past the anterior axillary fold, which in my opinion, looks more fake than upper pole fullness. So there are many factors that need to be considered. The experience of the surgeon and the degree to which they explain the options to you is of utmost importance. Obviously all of my patients look at photographs and we evaluate the look they are desiring in great detail. For me, high profile implants are the first choice. I rarely find an indication to use moderate or moderate plus implants. This does not make me a better surgeon, or a worse surgeon. Look at the outcomes and judge for yourself. The outcomes should stand on their own. The subtlety in the final outcome is not achieved by which profile implant is used, it is determined by the skill in the creation of the pocket, the choice of volume, and where in the range the implant is filled. Don't let the doctor tell you what would look good on you. They cannot tell what you perceive to be the best size.HP implants, which are a more modern shape than moderate profile implants, fit most women better. They have a more appropriate base diameter and can be made to look very natural or very augmented, depending on where in the range the implants are filled to achieve a particular volume. High profile implants are the first choice in my opinion. I rarely find an indication to use moderate or moderate plus implants. The subtlety in the final outcome is not achieved by which profile implant is used, it is determined by the skill in the creation of the pocket, the choice of volume, and where in the range the implant is filled.