Confused About BWD Meaning. I Am 12.5 Cm Should my Implant Diameter Be Less Than That?

You are correct, that if you put in implants with too narrow a base width, then you can end up with a 'space' between your breast mounds.   Not good. Base width can be adjusted to a desired base width, slightly, but for a natural result, you need an implant that is similar to your natural base width. Once  the base width is chosen, then different profile implants can be chosen to achieve the desired size.  300 cc implants won't increase you two cup sizes, possibly closer to one cup size. With shaped implants, we have the ability to control the width, height, projection and volume, and better customize the implant choice for a better fitting and more natural result.  

Hi there-

These types of questions are the most commonly asked... and are unfortunate in that the implication is that choosing the implant you want is like deciding what you want to eat at the Boston Market counter...

Choosing an implant is really a very nuanced undertaking, and is not as simple as taking a few measurements and looking at a chart.

The very best advice I could give you (and which I give at least 10 times a month) is to spend your time and energy finding a quality, experienced, skilled, and Board Certified Plastic Surgeon first, then carefully communicating your goals for appearance. Then, let your chosen surgeon advise you on the details of the procedure most likely to achieve those goals for you.

This will eventually require you to make a leap of faith, but will greatly lower the risk of you needing a revision surgery when you figure out what we already know- that it is not possible to predict accurately what an implant will look like solely by external measurements and playing with implants in bras...