What is overfilling?
Overfilling involves adding more saline to the breast implant than the manufacturer says is the maximum amount. This is only an option with saline breast implants, as they are filled after implantation. Saline implants come in a wide range of sizes, and all of them have both a minimum and maximum fill amount. Overfilling may make the implant feel firmer, but will not affect its size. Overfilling may also increase the risk of deflation, and may void your warranty.