My doctor has prescribed ultrasound to heal the broken bone in my arm. I’ve never heard of this. Does ultrasound have any side effects or dangers?

Low-intensity ultrasound has been used for decades to promote bone healing. There are no negative side effects from ultrasound treatments. In fact, its use has been well studied in pregnancy, where it is used routinely without any problems. Ultrasound has also been shown to be very effective in helping heal fractured bones.