Physiotherapy uses physical measures like heat, light, ultrasound, water, electricity and exercises to treat orthopedic injuries and conditions through both passive and active techniques. The goals of physiotherapy are to treat and prevent disability and deformity. Physiotherapy can be either short term for minor issues like soft tissue injuries or long term for more serious conditions like fractures, spinal injuries, and chronic diseases. Treatments include exercises, electrotherapy, massage, mobilization and various modalities like ultrasound, heat and cold therapy.