Is there much of a difference between 375cc and 550cc silicone breast implants?

I have 375cc under the muscle silicone implants. I am having them redone and chose 550cc silicone implants, also under the muscle. Will there be much of a difference?

Answers from doctors (12)


A 175 cc volume differential is typically significant. However, the degree to which this will make a difference in outcome depends on the patient. The upsize is relative to the overall size of the breast. Additional volume is a function of the whole. 175 cc's added to a small breast will differ greatly from 175 cc's added to a much larger breast.

As always, discuss your concerns with a board-certified plastic surgeon (ABPS).

Answered by The Institute of Aesthetic Surgery (View Profile)

A 175 cc volume differential is typically significant. However, the degree to which this will make a difference in outcome depends on the patient. The upsize is relative to the overall size of the breast. Additional volume is a function of the whole. 175 cc's added to a small breast will differ greatly from 175 cc's added to a much larger breast.

As always, discuss your concerns with a board-certified plastic surgeon (ABPS).

Published on Jul 11, 2012


James D. Wethe, M.D.

Published on Dec 30, 2016

Well, you are increasing the volume by 175 cc's, so yes, I would expect to see a visible difference. I commonly tell patients that anything at 100 or more cc's will make a notable difference. One idea you might pursue is to go to your surgeon's office and ask to see sizer implants that are both your current size as well as the 550 cc implants. That will give you a visual of what the difference is and can help you make your decision a bit more clear. Hope this helps.

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Answered by James D. Wethe, M.D.

Well, you are increasing the volume by 175 cc's, so yes, I would expect to see a visible difference. I commonly tell patients that anything at 100 or more cc's will make a notable difference. One idea you might pursue is to go to your surgeon's office and ask to see sizer implants that are both your current size as well as the 550 cc implants. That will give you a visual of what the difference is and can help you make your decision a bit more clear. Hope this helps.

Published on Jul 11, 2012


Timothy Mountcastle, MD, RPVI

Published on Dec 29, 2016

Yes, it's nearly double the size.

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Answered by Timothy Mountcastle, MD, RPVI

Yes, it's nearly double the size.

Published on Jul 11, 2012


Larry Leverett, MD, FACS

Published on Dec 21, 2016

Depending on how much breast tissue the patient has and her height & weight, one breast cup size is approximately 200 cc's; therefore, one can expect about one bra cup size but remember that the same size breasts can wear different size bras.

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Answered by Larry Leverett, MD, FACS

Depending on how much breast tissue the patient has and her height & weight, one breast cup size is approximately 200 cc's; therefore, one can expect about one bra cup size but remember that the same size breasts can wear different size bras.

Published on Jul 11, 2012


More About Doctor Laser Lipo & Vein Center

Published on Dec 21, 2016

The 550cc implants are quite a bit bigger. Depending on your frame it will be quite noticeable.

Answered by Laser Lipo & Vein Center (View Profile)

The 550cc implants are quite a bit bigger. Depending on your frame it will be quite noticeable.

Published on Jul 11, 2012


Charles Slack M.D.

Published on Dec 21, 2016

With that much increase in size, you should see at least a cup size difference. If the profile of the implants remains the same, your new implant will have a side diameter as well. This will give you more upper pole fullness and perhaps a narrower cleavage.

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Answered by Charles Slack M.D.

With that much increase in size, you should see at least a cup size difference. If the profile of the implants remains the same, your new implant will have a side diameter as well. This will give you more upper pole fullness and perhaps a narrower cleavage.

Published on Jul 11, 2012


More About Doctor Joseph Cruise, MD

Published on Dec 21, 2016

There will be a substantial difference between your current 375cc and the new 550cc implants. I'm assuming you wanted to go larger and that is why you chose to jump up this much in size? One thing to keep in mind is the style of implant being used. For example, a moderate profile implant will look different than a high profile implant. A moderate profile implant has a wider base w/ less projection, while the high profile has a narrower base w/ more outward projection.

Answered by Joseph Cruise, MD (View Profile)

There will be a substantial difference between your current 375cc and the new 550cc implants. I'm assuming you wanted to go larger and that is why you chose to jump up this much in size? One thing to keep in mind is the style of implant being used. For example, a moderate profile implant will look different than a high profile implant. A moderate profile implant has a wider base w/ less projection, while the high profile has a narrower base w/ more outward projection.

Published on Jul 11, 2012


More About Doctor Susan Vasko MD, FACS

Published on Dec 21, 2016

You should notice a size difference going up 175cc's. You should consult with your surgeon as to what your postoperative size will likely be with your new implants.

Answered by Susan Vasko MD, FACS (View Profile)

You should notice a size difference going up 175cc's. You should consult with your surgeon as to what your postoperative size will likely be with your new implants.

Published on Jul 11, 2012


Edward Domanskis M.D.

Published on Dec 21, 2016

By increasing the cc size by about 200cc's, your cup size should increase by about 1 one quarter cup size!

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Answered by Edward Domanskis M.D.

By increasing the cc size by about 200cc's, your cup size should increase by about 1 one quarter cup size!

Published on Jul 11, 2012


Gerald Minniti, M.D., F.A.C.S

Published on Dec 21, 2016

That's a 46% volume increase. That puts you in the 'noticeable' category. Best way to confirm is using 175 cc sizers in an unpadded bra. Best of luck.

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Answered by Gerald Minniti, M.D., F.A.C.S

That's a 46% volume increase. That puts you in the 'noticeable' category. Best way to confirm is using 175 cc sizers in an unpadded bra. Best of luck.

Published on Jul 11, 2012


More About Doctor Tom Pousti, M.D.

Published on Dec 21, 2016

Thank you for the question and picture. Unfortunately, no plastic surgeon is able to accurately predict the information you are asking. Generally speaking, the best online advice I can give to ladies who are considering breast augmentation revision surgery ( regarding breast implant size/profile selection) is:

1. Concentrate on choosing your plastic surgeon carefully. Concentrate on appropriate training, certification, and the ability of the plastic surgeon to achieve the results you are looking for. Ask to see lots of examples of his/her work.

2. Again, have a full discussion and communication regarding your desired goals with your plastic surgeon. This communication will be critical in determining which operation and/or breast implant size/type/profile will most likely help achieve your goals.

In my practice, the use of photographs of “goal” pictures (and breasts that are too big or too small) is very helpful. I have found that the use of words such as “natural” or "C or D cup" etc means different things to different people and therefore prove unhelpful.

Also, as you know, cup size varies depending on who makes the bra; therefore, discussing desired cup size may also be inaccurate. The use of computer imaging may be very helpful during this communication phase.

3. Once you feel you have communicated your goals clearly, allow your plastic surgeon to use his/her years of experience/judgment to choose the breast implant size/profile that will best meet your goals. Again, in my practice, this decision is usually amade during surgery. The use of temporary intraoperative sizers, viewing the patient's breasts in the upright and supine position, are very helpful during the breast implant selection process.

I hope this helps

Answered by Tom Pousti, M.D. (View Profile)

Thank you for the question and picture. Unfortunately, no plastic surgeon is able to accurately predict the information you are asking. Generally speaking, the best online advice I can give to ladies who are considering breast augmentation revision surgery ( regarding breast implant size/profile selection) is:

1. Concentrate on choosing your plastic surgeon carefully. Concentrate on appropriate training, certification, and the ability of the plastic surgeon to achieve the results you are looking for. Ask to see lots of examples of his/her work.

2. Again, have a full discussion and communication regarding your desired goals with your plastic surgeon. This communication will be critical in determining which operation and/or breast implant size/type/profile will most likely help achieve your goals.

In my practice, the use of photographs of “goal” pictures (and breasts that are too big or too small) is very helpful. I have found that the use of words such as “natural” or "C or D cup" etc means different things to different people and therefore prove unhelpful.

Also, as you know, cup size varies depending on who makes the bra; therefore, discussing desired cup size may also be inaccurate. The use of computer imaging may be very helpful during this communication phase.

3. Once you feel you have communicated your goals clearly, allow your plastic surgeon to use his/her years of experience/judgment to choose the breast implant size/profile that will best meet your goals. Again, in my practice, this decision is usually amade during surgery. The use of temporary intraoperative sizers, viewing the patient's breasts in the upright and supine position, are very helpful during the breast implant selection process.

I hope this helps

Published on Jul 11, 2012


Robert Kearney, MD

Published on Dec 21, 2016

That should be a little more than a cup size. If you have an HP 375cc implant, you should be changing to an ultra high profile 550cc. That will give you more projection as opposed to being wider. Merry Christmas

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Answered by Robert Kearney, MD

That should be a little more than a cup size. If you have an HP 375cc implant, you should be changing to an ultra high profile 550cc. That will give you more projection as opposed to being wider. Merry Christmas

Published on Jul 11, 2012


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