Complex regional pain syndrome (CRPS) is a chronic pain condition. It causes intense pain, usually in the arms, hands, legs, or feet. It may happen after an injury, either to a nerve or to tissue in the affected area. Rest and time may only make it worse.
CRPS is uncommon, and its cause isn't clearly understood. Complex regional pain syndrome treatment is most effective when started early. In such cases, improvement and even remission are possible. Signs and symptoms of complex regional pain syndrome include:
In some people, signs and symptoms of CRPS go away on their own. In others, signs and symptoms may persist for months to years. Treatment is likely to be most effective when started early in the course of the illness.
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