Are 350cc moderate plus silicone too large for my 5'4" 125 frame?

350 mL would probably do quite well. There good sizing systems or you can try out this volume prior to having the operation.

An exam and measurements would give the best info to determine the appropriate sized implant.  Based on my experience this size implant will produce a nice result. 

The most important aspect of breast surgery is picking the implant that fits your body like a show fits your foot. The moderate plus profile is a nice profile as it is not too obvious. If the diameter of your breast settles for a 350cc implant than you have made the correct choice!

Thanks for your question. If you are a B cup now, the standard answer is that 200CC gets you to the next cup size. This doesn't hold true for every person but is a ball park estimate. The quality of breast tissue and skin with regard to its elasticity is a key component. This discussion about size and desired outcome is one you have to feel comfortable with in regards to communicating with your surgeon. It should not be a complete leap of faith. Best of Luck!

Keep in mind that your surgeon's recommendation is based experience, on your conversation with him/her as well as your exam.  Generally speaking, 200cc is about a cup size so it may bring you to a full C/C+ depending on what you are starting off with. Going under the muscle will push down the projection a bit as well.  If you are concerned, talk to your surgeon again and ask to try on implants again and see what you feel comfortable with and go from there but I think a 350cc should give you a nice result.  ac

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.

There are no manufacturers' standards for cup sizing in the bra industry. The
cups of a 34 D and a 38 D are significantly different. Cup size varies from
manufacturer to manufacturer and even within styles from any particular
manufacturer.

Keep in mind that following the advice from a surgeon on this or any other
website who proposes to tell you exactly 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

Think of a 12 ounce can of coke, that is 360 cc.  That really isn't very big, 350 cc implants would be less than that.  Of course, you need to pick the size implant that fits your body frame and gives you the type of result you are looking for.  The most common complaint I hear from my patients after breast implant surgery is that they wished they had chosen a larger size to begin with!  Do not be afraid of 350 cc implants.

Your questions are great and appropriate. Unfortunately, an online
forum is not going to be much help in answering your questions.Sizing of breast
implants is a very individualized
process. Essentially, you need to custom fit the implants to your body.
In order to properly size implants, you need measurements of several key

items. Regardless of what manufacturer of implant your surgeon uses,
they all have what is called dimensional fitting systems. These systems
basically take some measurements of your breast width, height, and
tissue stretch to determine the optimal volume for your particular
tissues. i.e. What can your tissues handle? That is the "science" of
determining the optimal size implant for your tissues. The artistry with
your surgeon comes in taking the ideal size and working with some
judgement to get you as close as possible to your desired outcome. So
someone 5'4" 125 lbs with
3 children vs. someone with no children may have different optimal
volumes due to the differential stretch in their tissues. You can
Google
"High Five Augmentation" to get a quick idea of the process.Good luck.

There are several factors that plastic surgeons consider when recommending implant sizes. I consider two factors when selecting implants for my patients:1. Dimensional planning2. Gel Implant Sizing systemDimensional planning – The measurements of your chest wall are taken. Also, the breast dimensions including the height, width, and current dimensions of each breast form the basis of dimensional planning. Based on these measurements, the implant size is recommended. This will give you a unique breast implant that is suited for your body frame. However, there are some limitations of what size we can recommend. For instance, some implants may just be too big for a narrow chest wall. Your surgeon can review this with you during the consultation.Gel Implant Sizing system – During the preliminary breast implant consultation, you will be provided with an option to “try on” a variety of implant shapes and sizes. You can also visualize the possible outcomes of your surgery which helps you to get that perfect size to give you the shape that you longed for. This way your preferences are known and you can then pick a range of implants that will “fit” just right to give a soft natural fuller look. Hope this helps.Dr. BasuHouston, TX

It is all a matter of degrees.  A 350 cc implant will take you up approximately 2 cup sizes.  If that is larger than desired then consider going a bit smaller.  Vectra 3D imaging is really helpful when determining the appearance of your breast prior to surgery.   I find this more helpful than putting an implant in your bra or using a rice filled nylon stocking.