Breast width is 12cm & augmentation in 4 days - moderate plus xtra or high profile? (Photos)

I encourage you to return to your surgeon to discuss your concerns. Many surgeons have sample implants available that you can "try on" to give you an idea of how you may look after surgery. Specific implant decisions are best made in person with your surgeon who has had the opportunity to examine you and talk to you about the look you are wanting.

If you still have questions about implants selection, then I suggest you talk to your provider.
Without context, I don’t think any of us are going to be able to give you useful information.
Generally speaking breast augmentation surgery outcomes are based on three variable.
The first is patient candidacy.
Variables that affect candidacy include the shape of the breast Potential breast asymmetry, position of the breast on the chest wall, breast, divergence, etc., etc.
The second variable is implant selection in regards to type shape and size.
The third variable is the surgeons ability to put the implant in the correct anatomic location.
This is not related to placing the implant above or below the pectoralis muscle, though I think most plastic surgeons favor sub-pectoral augmentation.
I generally recommend going with low profile implants unless the patient wants more volume and has a limited breast diameter.
The measured breast diameter is not the exact breast diameter.
The breast diameter has measured is only a reference point to appropriate size implants that can be used.
Many surgeons use implants that are substantially bigger in diameter than the patient’s natural breast diameter.
Most plastic surgeons Will use the breast diameter as a reference point and that and many other criteria and variables for their recommendation when it comes to implant selection.
I find that low profile implants, generally look the most natural and high profile implants look more implant like in the extreme version like tennis balls on the chest.
Each provider has their own way of guiding patients through the implant selection process.
Some providers do this better than others.
Some plastic surgeons will make the ultimate final decision regarding implant selection and other plastic surgeons ask the patients to make the final decision.
Personally, I think the surgeon is in a better position to make the final implant selection decision based on having a good understanding of what the patient is trying to achieve.
My personal preference is to work with before and after pictures of previous patients who had similar body characteristics to the patient.
Once I understand what the patient is trying to achieve I bring those before and after pictures with me to the operating room.
During surgery, I use temporary sizers to determine what size and shape implant will give the desired outcome.
I typically have a complete selection of implants available to me during surgery.
Like I mentioned, each plastic surgeon will have their own way of doing this and if you’re confident in your surgeons scale and ability, then you should have your provider guide you through the process.
Getting input from other providers by posting on the Internet isn’t going to help you and giving you specific recommendations is more likely to just cause more anxiety for you.
Best,
Mats Hagstrom MD