Even before you visit your surgeon and discuss sizing options, it is a good idea to experiment on your own so you have an idea about what feels comfortable.

A good starting point is an honest assessment of your body's overall stature. If you have a petite build with small shoulders and a narrow ribcage, a more modest one will have a more dramatic effect and look more natural.

Going too large might look abnormal or even feel uncomfortable, whereas if you're taller with a wider frame, larger may compliment your shape better.

You can get a visual by making your own trial bra inserts at home by densely stuffing a soft bag with rice or another similar material and placing them inside a snug fitting sports bra. Even better is to buy professionally designed bra inserts that are sold usually in sizing kits online.

After you've decided on a general size and look on your own, consult with your surgeon about the possibilities and what he or she thinks would provide the best results. Bringing pictures of what you like and dislike will also give the surgeon a better idea about what you're looking for. Often times a surgeon will let you try on the actual implants inside of a sports bra.

The other factors that will also affect implant sizing are placement, preexisting tissue, and shape of the chest.

An implant placed underneath the muscle will appear smaller than the same size placed above. How large you are to begin with will also influence the size choice. If you have little breast tissue and a small cup size initially, a very large breast size might be impossible to achieve.

The same is true concerning the anatomy of your chest wall. The way the ribs curve can change the symmetry and look of implants. All of these issues should be considered before undergoing breast enhancement.

Beyond size, to some degree you can also choose the shape of the implant. There are two main shapes used in breast augmentation today: teardrop and round.

Teardrop shaped make the breast look fuller towards the bottom and have a more sloped appearance. Some people find that this is a more natural look, but it is normally pricier and most patients choose the popular round shape.

Round implants increase the fullness of the breast overall and give the most amount of cleavage. Although you can choose the shape of the implant, the general look of your breasts will more than likely not drastically change beyond size.

By preparing beforehand, you'll feel more confident when you discuss your options with your surgeon. It is important to be realistic about your expectations, but make sure your surgeon listens to your needs and desires. Making a wise, thoughtful decision now will save you from difficulties later.