Is 550-600 cc big for sub-glandular procedure?

Thank
you for your questions. Breast implant size is determined by your
anatomy and an examination.  Make sure you understand the benefits and risks associated with sub glandular implants.  If your unsure, have a second consultation with a board certified Plastic
Surgeon. Best Wishes

Thank you for your question.  That is definitely a large implant.  I tend to not put implants that large above the muscle for a couple of reasons. There will be more capsular contracture (scar tissue) when placing the implant above the muscle.  Also, such a large implant over time will stretch the skin and even more importantly the pressure of the implant will cause loss of breast tissue volume over several years.  All this put together means the implants will not last quite as long above the muscle as below.  

When I place 600cc implants, my patients are asking me to make them look augmented. If you liked them in a sports bra, you may be happy with that large of an implant. But you said that you don't want to be huge.I think there are some real advantages of going behind the muscle, so please consider that. You will have a more natural appearance with a decreased risk of capsular contracture, and a better mammogram in the future. I'm impressed if your surgeon has done 10,000 augmentations. That would be two a day, every day for 20 years. Best of luck!