5'9, 153lbs. Getting cold feet, is 500cc too much for my BA? (photos)

I think, with your measurements, you are in the correct range.  However, leaning towards the 500, as you have indicated, comes with certain risks.  The question is can 500 cc in a thin woman appear  "natural" as you desire?  That really depends upon what your definition of "natural" is, and warrants a thoughtful discussion.  As well, often when the patient is aiming for a larger implant, with "natural" goals, I prefer a gummy bear, shaped implant, which decreases the tendency for that upper pole "Pam Anderson "look.  In cases like yours, I put a lot of weight into how the sizing session goes.  Make sure you are having a lot of back and forth with your surgeon on this one.Best of luck!
Dr. SubbioBoard-Certified Plastic SurgeonNewtown Square/Philadelphia, PA

Hi there,I'm in agreement with the excellent responses from the other surgeons.  But, I'll add a couple of other considerations that were not specifically addressed.Have you had kids?  Do you plan to have kids?  and also to breast feed?  Did you try on implant sizers with your surgeon?  Did you discuss under or over the muscle? This will have an effect on the amount of cleavage you see. All of these factors have a role in determining the longevity of the final result and the  chance of future revisionsYour chest width and height can handle a fuller  (400-500cc) implant however, if your soft tissue is 'tight,'  (often the case with women who have not had children) it's not always so simple to get a large implant in place.Also, the larger the implant, the heavier it is and the faster it will drop over time.  And, if you can get the look you want with the 400cc range, might be the better choice...you don't want to go from looking sexy to looking boxy or matronly within the year because of an implant that is too full. The pics that you shared look OK now, if you could see them in 5 years, you might think otherwise.If you haven't had a chance to ask these questions, make the time to get in for a second visit before your procedure.In good health,Ellen Mahony, MD

Hello and thank you for your question and photos. Although your height may allow you to look  proportional with a larger implant, an implant sizing system may help you make a more informed decision. Choosing the right implant size is based on several factors including  chest wall and breast measurements. Picking the right implant should be a collaborative discussion between you and your surgeon. You should be 100% comfortable with your choice before you undergo surgery.  I hope this helps and good luck with your upcoming surgery.