Is it normal for a saline implant 330cc to be overfilled to 500cc?

Saline implants are typically filled any where from 30 - 50 cc above their stated size. In your case, they are filled 170 cc above their size. This not only increases the firmness of your breasts, but will void your implants’ warranty. Hopes this helps.

Thank you for your question. Saline implant overfilling can be done, but the degree of overfilling should be according to the manufacturer's recommendation. Manufacturers usually recommend a range of overfilling 10-15% of the implant's original size. This can prevent premature rupture, reduce the risk of rippling, and maintain the implant shape. For a 330cc implant, the safe range is around 360-380cc, and filling to 500cc would exceed the recommended manufacturer's range, increasing the risk of implant rupture, excessive firmness, or wrinkling. If you aim for more volume, choosing an implant with a higher base size might be safer than overfilling beyond recommended limits.

Some surgeons will overfill implants to achieve the desired volume and shape. The negatives to doing this is that they can feel abnormally firm, and it may invalidate your warranty.