Achilles tendon injuries are one of the most common tendon injuries in the lower extremities, but spontaneous bilateral achilles tendon rupture without any external force is extremely rare. We present a case of a patient who had spontaneous bilateral achilles tendon rupture related to multiple steroid injections for carpal tunnel syndrome in diabetes. According to this case, we suggest that we should take special precaution to use steroid to the diabetes though it is not applied to the achilles tendon directly. (J Korean Acad Rehab Med 2009; 33: 715-717)
