Breast Augmentation CC for my Size. Is There a Big Difference Between 350 and 400cc?

I am undergoing Breast Augmentation in a couple of months and am really having trouble deciding whether to go 350 cc 375cc or 400cc... Right now I am a 32A and I am 5'5 and 110 pounds. I really don't want to be too small but I dont want to be big to where it could make me look "trashy". Is there really that big of a difference between 350cc and 400cc?

Doctor Answers 26

How to pick the right breast implant size

The most difficult decision in breast implant surgery is choosing the right size for you.  The correct size will depend on your existing breast tissue, your chest wall anatomy, your desires and the plastic surgeon's artistic skill.  There is really very little difference between the 3 implant sizes you are considering, and you will probably look just fine with any of the three, but let's get very technical and break down why I am saying this.  I do not know what company or style of implant you are considering, but as an example let's look at Mentor, smooth, round, moderate plus silicone implants::

Volume                                     Diameter                                     Projection

350 cc                                       12.5 cm                                      3.9 cm

375 cc                                       12.8 cm                                      4.0 cm

400 cc                                       13.1 cm                                      4.0 cm

The diameter is the distance at the base of the implant.  The projection is the height or how much the implant protrudes.  As you can see there is only 1 mm difference between the 2 smaller sizes and NO difference in the 375 and 400 cc implant.  The difference in base diameter is 3 mm for each implant, but remember that is a diameter, so the actual increase in how far the implant extends into the mid line (cleavage area) is only 1.5 mm.  Go look at a ruler to see how much 1.5 mm is, make sure you put your reading glasses on first!!

So, really, these 3 implants are basically the same.  To make a difference in cup size, the general rule of thumb is 200 cc for each cup size.  50 cc falls way short of this and would not change your cup size.  The number one complaint after breast implant surgery is that the women wished they had chosen a bigger size to begin with.  Do not be one of those people.  You can see an extra 50 cc sounds like a lot, but it really is not!

Omaha Plastic Surgeon
4.9 out of 5 stars 75 reviews

Breast Augmentation CC for my Size. Is There a Big Difference Between 350 and 400cc?

If you're having trouble deciding between 2 implants choose the larger size!

I have patients try on implant sizers in front of the mirror and see what looks best to them. Occasionally patients choose a size that is too large for the breast to accommodate. Then we will look at smaller sizes to get the patient as close as possible to where she wants to go.

There is no perfect way to choose size. If there were we would all do it that way. It is interesting that we get it right as often as we do.

Don't lose sleep over 25 to 50cc (one to two ounces). In my experience patients are happy for every cc they gained with their augmentation.

Good luck!

Eric Pugash, MD
Vancouver Plastic Surgeon
4.9 out of 5 stars 140 reviews

How do I choose the #BestSizeBreastImplant ?

Just for reference - a shot glass = 2 tablespoons = 30cc's.
It is very difficult to determine the exact size and shape implant you will require to best match your ideal breast image without an examination by a board certified plastic surgeon. Not just any board certified plastic surgeon, but one with many years of frequently performing breast augmentation surgery including different approaches, techniques and implant choices. This is because several measurements not to mention your breast characteristics are needed to determine the optimal implant size to obtain your goals. Without knowing these dimensions it would be difficult to make this determination. For example, the existing base width of your breast will determine, in many cases, the maximal volume per implant profile that you can accommodate. To illustrate; a 100 cc difference may make a significant difference with a narrow base width breast, but much less of a difference if you have a wide chest wall and wide breast “foot print”. Therefore, just because your friend may have a great result with let’s say a 350 cc implant to make her go from a “A” cup to a “C” cup size does not mean that you will have the same result with the same size implant. . Further simply placing implants in a bra to determine the size best for you is not always accurate as the bra often distorts the size, is dependent on the pressure the bra places plus the implant is outside your breast and not under it among other variables. Computer software morphing programs that automatically determine the best implant size can be helpful in some but not all cases (e.g. doesn’t work well in my experience with existing implants, sagging or asymmetric breasts). Using “want to be” photos however are useful if simply provided to the surgeon as I will further explain in a bit.

Larry S. Nichter, MD, MS, FACS
Orange County Plastic Surgeon
4.9 out of 5 stars 157 reviews

Breast implant size

The smallest volume difference you can detect is 30 cc, so 50 cc is not a "big" difference. If you are over filling a saline implant you are modifying the projection and essentially moving from a moderate to a higher profile device. If you are using gels and staying within the profile, you are increasing the diameter and maintaining the projection.

Communicating with your surgeon and defining your goals are more important than defining the specific implant volume. Your desired look can be achieved and evaluated with implant sizers in the operating room. You should not worry about the 50 cc difference if you have clearly defined your goals with your surgeon.

I hope this was helpful and good luck.


Robert W. Kessler, MD, FACS
Corona Del Mar Plastic Surgeon
5.0 out of 5 stars 130 reviews

Breast Implant Size

The question of breast implant size is always difficult for prospective breast augmentation patients. For this reason, multiple approaches are utilized to make this determination pre-operatively. These include reviewing magazine photographs, external sizers and recently the 3D Vectra computer imager to name a few.

Even when tremendous care is taken pre-operatively to determine breast size, the final decision needs to be made in the operating room by the surgeon. At this point, an assessment can be made regarding how the patient's breast tissue interacts with the breast implant. Occasionally, obtaining a specific size doesn't allow the surgeon to meet the patient's other aesthetic goals. For this reason, locking into a specific size isn't always a good idea. Results are often better when a surgeon has the ability to make adjustments in the operating room.

It's also important to realize that for many patients, a 25 cc difference in breast size would be difficult to notice. In reality, a 25 cc difference is less than two tablespoons which is spread in three dimensions over the implant.

In your case, it's important to thoroughly discuss your aesthetic goals with your surgeon. Make sure he has the latitude to do what's best for you in the operating room so he can meet your aesthetic goals. It's important that you have an approximate idea of the breast implant size that you're considering, but don't become married to an absolute number.

Richard J. Bruneteau, MD
Omaha Plastic Surgeon
4.9 out of 5 stars 194 reviews

Choosing size

I would suggest trying on sizers in those sizes to see which you prefer. You sound like you're relatively slender, but I would need more information to give you a better recommendation on implant size. Your surgeon should also be able to provide you with suggestions on which would be most suitable. 
But you should know that there isn't much of a difference between those sizes.  

Ronald Levine, MD
Toronto Plastic Surgeon
4.6 out of 5 stars 24 reviews

Breast augmentation cc size for my size. Is there a big difference between 350cc and 400cc?

Hello! Thank you for your question. In general, implant size does not correlate with bra cup size. The cup size itself will vary from manufacturer to manufacturer as well as who is doing the actual measurements. Thus, cup size is never a reliable indicator for your breast size. I typically encourage my patients not to communicate her desires in cup size but more on the actual look and appearance.  There likely will. It be an appreciable difference between the sizes, but more importantly, the width and dimension of the implant will change, in which case, the appearance of your breasts. 

Good communication between you and your surgeon of your expectations is warranted - choosing your surgeon wisely is the first step. Discussion of your wishes and having an honest and open dialog of your procedure is mandatory (e.g, implant type, incision, placement, lift, etc). I have found that photographs brought by the patient is helpful to get a visualization of the appearance you wish for in terms of size, shape, fullness, etc. In addition, your surgeon's pre and postoperative photographs should demonstrate a realistic goal for you. Once this has been accomplished, allow your surgeon to utilize his/her best medical judgment during the procedure to finesse the best possible result for you after preoperative biodimensional planning and fitting the right implant for your breast width.

Hope me that this helps! Best wishes for a wonderful result!

Lewis Albert Andres, MD
Scottsdale Plastic Surgeon
5.0 out of 5 stars 26 reviews

Implant Selection Process

In order to make an accurate size recommendation, I would need to assess your chest wall and breast mound measurements and characteristics.  Unfortunately, there is not a general rule of thumb or objective criteria to implant selection.
Your plastic surgeon will perform several measurements of your chest wall and breast anatomy and determine a range of implants that both fit your chest wall and reach your desired goals.
The next step is to try on this range of implants in the office with your doctor.   The key to this success is showing your surgeon the body proportion you desire with a bra sizer and allowing your surgeon to guide you to the right implant.   It will be much easier to communicate in implant cc's than cup size when determining the appropriate implant for you.
I wish you a safe recovery and fantastic result.
Dr. Gill

Paul S. Gill, MD
Houston Plastic Surgeon
4.8 out of 5 stars 85 reviews

Implant Sizing

I consider two factors when selecting implants for my patients:

1.Dimensional planning
2.Gel Implant Sizing system

Dimensional 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.  If you have decided on saline implants, then based on the gel sizer you select, we can guide you to the saline implant that achieves a similar look.
Hope this helps.
Dr. Basu
Houston, TX

C. Bob Basu, MD, FACS
Houston Plastic Surgeon
4.7 out of 5 stars 211 reviews

Difference between 350cc and 400cc

Although the differences among 350cc, 375cc, and 400cc are not that "big", it also depends on each patient's body.  For patients who are tall and wide, 50cc will not make much difference.  For patients (such as yourself) who are slim, 50cc will make a more of a difference.  You should try on implant sizes prior to your surgery; you should also ask your plastic surgeon whether you will be happier with 350cc, 375cc, vs. 400cc.  Please let your plastic surgeon know your desired look/goal; you can review other pre and post-op photos of patients who have similar body/anatomy to yours and see what size implants had been used.  Good luck to you.

Sugene Kim, MD, FACS
Houston Plastic Surgeon
4.7 out of 5 stars 76 reviews

These answers are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.