Hi and welcome to our forum!SIZING: Determining the “perfect” breast size before a planned breast augmentation is quite a difficult task. Each individual has a different concept of “normal” breast size. In addition, there is no standardization of bra size in the manufacturing industry. One company’s “C” is another company’s “D”.There are various ways to determine desired breast size. Bringing in “wish pix” to demonstrate to your surgeon will make him / her aware of your anticipated goals. Placing an implant in a bra gives an extremely rough idea of anticipated breast size. One may estimate volume by adding rice to a baggie (1 cc = 1 ml) and adding the volume to your breast beneath a bra. Some surgeons offer computer imaging. Implant sizing is a lot more than volume ("cc.") The specific dimensions of your chest wall must be taken into consideration. The width of the breast, your desired projection, and the desired volume together determine the correct range of implant sizes. The most important measurement is the base width of the implant. If you drop a vertical line from the medial most and lateral most aspects of the breast, and measure the distance between them, this suggests a base width (the footprint of the implant) . If an implant is too narrow, you will not have adequate cleavage. If wider than the base width, you will have excessive cleavage and “lateral boob”. The fill of the implant then determines the amount of forward projection. I recommend you visit an implant website (e.g. Mentor, Allergan, etc.) as they will list base widths, fill options, and projections for each implant size they offer. SALINE VS. SILICONE: Choosing between saline and silicone implants is often difficult as there are several factors to consider:Saline implants are usually less expensive. Saline implants placed in patients with sufficient breast tissue will look and feel natural, but if breast tissue is scant, the implant may be close enough to the skin surface to demonstrate "rippling". The implant may feel "limpid" (as it is filled with salt water) while silicone implants feel more natural as they are filled with viscous gelatinous silicone similar in consistency of breast tissue. As the saline implants are only filled after insertion into the breast, the skin incision can be smaller than with silicone implants. Postsurgical radiographic studies are not required. Silicone implants are more expensive. Silicone implants have a more natural feel and flow similar to breast tissue. There is less tendency to "ripple". Silicone implants require a larger incision as they are packaged prefilled. Serial monitoring of the implant is recommended with MRIs of the breasts performed at intervals to confirm the integrity of the implants.OVER / UNDER MUSCLE: With subglandular augmentation, the implant is placed under the breast and over the pectoralis muscle. As the muscle is spared, there is less postoperative discomfort. Muscle contraction will not result in breast distortion. There is an increased risk of capsular contracture with subglandular positioning. There is a greater change of implant "rippling" in patients with lax skin and small breasts if the implant is placed above the muscle.Submuscular placement has a lower incidence of capsular contracture, but there is more postoperative discomfort. There is a lower incidence of implant rippling. You can trust the recommendations of a board-certified plastic surgeon. Best wishes…