Are 310 cc silicone implants too small for me?

Hopefully you had some input into the decision regarding implant size. It does take time for them to settle, but in doing so, breasts do not get bigger. You should follow up with your surgeon and follow their recommendations. In general for your height and weight, 310 cc is a very reasonable size.

Thanks so much for reaching out. I think 310 mL may be a good size for you. But what is more important is what you think. A big part of the preoperative consultation is not only to take measurements and decide which implants would fit appropriately on your body, but is to try to determine what your goals are and if they are within reach.   If after six months you are unhappy with the size, speak with the plastic surgeon to determine what options there are. 

 Hope this helps :-) 

310cc is a reasonable size for your body frame but it really depends on so many factors.  I would evaluate in 3-6 months and then have a discussion with your surgeon.Best Wishes,Nana Mizuguchi, MD