Would 475 cc high profile implants be too big?

Thank you for your question.  Is an implant "too large for me" really is in the eye of the beholder.  A 475 cc silicone implant is relatively large, but may fit your breast pocket well.  Without knowing the dimensions of your breast and an in-person exam, it is difficult to say specifically.  Part of sizing implants focuses on a dimensional analysis of your chest and breast to give you an idea of where the implant will sit and how it will look.  Factors such as the tightness of the skin, position of the nipple and contour of the chest wall are important to take into consideration when selecting implants.  Your surgeon will be able to assist you and help you make an informed decision.Best of luck.

The exact choice of size that will work best for you is an important decision that you should make with your board certified plastic surgeon. 3D Vectra imaging and simulation, the Mentor gel sizing system, rice filled implants at home in your bra, and bio-dimensional analysis are all methods that can be employed to help you come to a decision. Because size is such an important component of decision making in breast augmentation our office employs all of these techniques with each patient to ensure the highest rate of satisfaction possible. Good luck with your decision!

Thank you for the question. Unfortunately, online consultants will not be able to provide you with specific enough advice (regarding specific breast implant size/profile) to be truly helpful. Given that your surgery is coming up soon, I would suggest that you spend more time with your plastic surgeon communicating your goals carefully.
Generally speaking, the best online advice I can give to ladies who are considering breast augmentation 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. Have a full discussion and communication regarding your desired goals  with your plastic surgeon. This communication will be critical in determining  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. In bra sizers can be useful communication tools also. I have found that the use of words such as  “natural” or "C or D cup" or "too big" 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 the communication process.
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 made during surgery ( after the use of temporary intraoperative sizers).
I hope this, and the attached link (dedicated to breast augmentation surgery concerns), helps. Best wishes for an outcome that you will be very pleased with.