Podiatrists are specialists in the treatment of feet, ankles and lower limbs. They work with patients to prevent injuries and diagnose and heal existing injuries. Podiatry involves taking x-rays, setting fractures and treating other injuries, as well as prescribing physical therapy and medication. Usually they will be involved in the treatment of bone, muscle and joint disorders affecting the feet. Podiatrists treat deformities utilising mechanical methods such as whirlpool or paraffin baths, and electrical methods, such as short wave and low voltage currents. They advise patients about treatments and foot care techniques necessary for prevention of future problems.