I am 26 yrs old 5'4 and 160 lbs, would 540 cc breast implants be too big?

Unfortunately, you have not told us your bra or cup
size. If you are a 32 or 34 each 100
cc’s of implant corresponds to 1 cup size change. If you are a 36 or 38 each 200 cc’s of
implant corresponds to 1 cup size change.
From this, you can compute the volume required to achieve your desired
goal. I always recommend small round
textured silicone gel implants placed retro-pectoral since they look and feel
more natural, are more stable, less likely to ripple or have complications
needing revision. Implant profile is
irrelevant in the retro-pectoral position since the muscle compresses it. 540 cc implants are too large, will not fit
retro-pectoral, will extrude inferiorly and laterally requiring revision. 22% of women who undergo breast augmentation
require revision within 2 years because they are dissatisfied with the
result. Avoid over implantation, which
results in high instances of dissatisfaction and revisions.Best Wishes,Gary Horndeski, M.D.

The best cosmetic result in any
particular breast augmentation patient depends on a variety of factors,
including: your individual anatomy, realistic expectations, a thorough
discussion with the plastic surgeon about the options, and an understanding of the
pros and cons of any particular implant choice. Proper sizing is not just about
the number of cc’s. The thickness of your tissue, breast dimensions which
include the width, height, and projection, as well as chest wall width all need
to be considered when choosing an implant. Trying on implant “sizers” of
various shapes and volumes while wearing a tight t-shirt, bra, or bathing sit
at a preoperative visit will help you and your surgeon choose the optimal
implant.

Keep in mind that following the
advice from a surgeon on this or any other website who proposes to tell you
what to do without examining you, physically feeling the tissue, assessing your
desired outcome, taking a full medical history, and discussing the pros and
cons of each operative procedure would not be in your best interest. I would
suggest you find a plastic surgeon certified by the American Board of Plastic
Surgery and ideally a member of the American Society for Aesthetic Plastic
Surgery (ASAPS) that you trust and are comfortable with. You should discuss
your concerns with that surgeon in person.

Robert Singer, MD FACS

La Jolla, California

As mentioned by others, the implant size depends on your body and the results you want. It is hard to tell is 540cc implants would look the best unless I was able to take breast measurements and do a thorough breast exam. You should be able to try on different implant sizes and shapes in your surgeon's office so that you can see how they look on your body.540cc implants do not sound unreasonable for your weight and height, but the final decision should be based on your individual measurements. I hope you achieve the look you want!