Saline breast implants are medical devices used in breast augmentation and reconstruction. They consist of a silicone outer shell filled with sterile saltwater (saline). These implants can be filled to varying levels, allowing for customization in size and shape. One advantage of saline implants is that they can be inserted through smaller incisions since they are filled after placement. If a saline implant leaks, the body safely absorbs the saline solution, and the implant deflates, making it easier to detect issues compared to other types of implants.