超声波是常用的物理疗法，治疗用途的超声可以产生深入身体组织的高温，以帮助结缔组织愈合、缓解肌肉痉挛、改善关节挛缩和肿胀。超声还能够增加局部血流，可以帮助身体减少局部肿胀和慢性炎症。研究表明，超声对于骨折愈合也具有积极的治疗作用。  超声治疗常见的适应症包括软组织损伤，如肌腱炎，非急性关节肿胀和肌肉痉挛。大多数肌肉和韧带损伤可以从超声波治疗中受益。

Therapeutic   ultrasound produces a deep heat to aid in the healing of connective tissues   and the reduction of muscle spasms, joint contractures and swelling. The   increase in local blood flow helps reduce local swelling and chronic   inflammation, and  promote bone   fracture healing and scar tissue breakdown. The common conditions   treated with ultrasound include soft tissue injuries such as tendonitis,   joint pain, ligament sprains and muscle spasm.