I have had breast implants for ten years and I am concerned that they could be ruptured. How would I know?

If you have saline implants, the saline leaks out of the ruptured implant and is harmlessly absorbed by your body.  Eventually, all of the saline leaks out and your breast returns to the same size it was before the surgery.  If you have silicone implants, the silicone is not absorbed so the size of the breast remains the same.  Usually a mammogram or, more likely, a MRI would need to be performed to determine if your implant is ruptured.