I'm 5'8 and 140 Lbs, What's my Ideal Breast Size?

             I think the best thing to do is to try sizers in the office to get a sense of how the added volume will affect your appearance.  Find a plastic surgeon who performs hundreds of breast augmentation procedures each year.  Then look at the plastic surgeon's website before and after photo galleries to get a sense of who can deliver the results.  Kenneth Hughes, MD Los Angeles, CA

My first recommendation would be to share this concern with your doctor so together you can choose a size that is right for you.  According to your comment, your doctor recommended you use 380cc when you already have 170cc, at the end you'll have a C cup. I like to have my breast augmentation patients try the implant on in front of the mirror with a tight top on, that way they can get a good idea of the size that is best for them. Best wishes.

There is no ideal breast size.  Beauty truly is in the eye of the beholder.  I strongly recommend that you try the breast implants on in the office before your surgery so that you can make sure the size is perfect in your eyes!  Good luck.

Breast Implant Size is a combination of subjective and objective criteria.380 cc is a reasonable recommendation. There is not a direct correlation between the cc's of a breast implant and the corresponding cup size, as cup size is an inexact measurement that varies considerably among companies and even within the same company. Online consultants will not be able to guide you as well as surgeons who perform in person consultation.The size of the implants are based on a combination of a patient's goals and objectives and her anatomy. In order to provide a natural looking augmentation, the surgeon needs to evaluate many factors including soft tissue coverage, skin laxity, chest wall width, breast imprint width, the shape of the breasts and relative level of constriction to ensure that the breast implants are appropriate for your body.

Without examining you, I would guess that 380cc would put you in the C cup range.  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