The prognosis in<unk>  is improved with early and aggressive treatment; with the risk of chronic, debilitating pain being reduced with the early treatment. If treatment is delayed, however, the disorder can quickly spread to the entire limb, and changes in bone, nerve, and muscle may become irreversible. The prognosis is worse with the chronic "cold" form of<unk>  and with<unk>  affecting the upper extremities. Disuse of the limb after an injury or psychological distress related to an injury are also associated with a poorer prognosis in<unk> . Some cases of<unk>  may resolve spontaneously (with 74% of patients undergoing<unk> e resolution of symptoms (often spontaneously) in a population based study in Minnesota), but others may develop chronic pain for many years. Once one is diagnosed with<unk> , should it go into remission, the likelihood of it resurfacing after going into remission is significant. Taking precautions and seeking immediate treatment upon any injury is important.
Complex regional pain syndrome
Thoracic outlet syndrome
Calpainopathy
Myofascial pain syndrome
Central pain syndrome
Nerve compression syndrome
Radiation-induced lumbar plexopathy
Polymyalgia rheumatica