Will 250cc Silicone Moderate Plus Implants Be Too Big?

Though it is not possible to determine this without an examination, the information you have provided is very helpfull. A 250 cc implant is fairly conservative and with a base width of 11.0 cm, I would expect an increase from a 34A to a conservative 34C, for someone of your height and weight. That said, I never know exactly what size is best until the implant is placed at surgery. However, it is very infrequent that I use implants smaller than 250 cc and most of my patients  are looking for a natural result. You should discuss your goals and concerns with your surgeon. Good luck.

Although potentially useful to some degree, online “consultations” cannot be as precise as necessary. Ultimately, careful communication of your goals, careful measurements (dimensional planning),  careful selection of appropriate breast implants and skillful execution of the procedure will be important steps in achieving your goals.
 

Generally speaking, the best online advice I can give to ladies who are considering breast augmentation surgery 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're 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. I have found that the use of words such as “natural”  or “C or D cup” etc means different things to different people and therefore prove unhelpful.
 Also, as you know, cup size varies depending on him who makes the bra; therefore, discussing desired cup  size may also be inaccurate.






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.



I hope this (and the attached link) help.