| 1. Continuing pain, which is disproportionate to any inciting event |
2. Must report at least one symptom in three of the four following categories*
Sensory: reports of hyperaesthesia and/or allodynia Vasomotor: reports of temperature asymmetry and/or skin colour changes and/or skin colour asymmetry Sudomotor/oedema: reports of oedema and/or sweating changes and/or sweating asymmetry Motor/trophic: reports of decreased range of motion and/or motor dysfunction (weakness, tremor, dystonia) and/or trophic changes (hair, nail, skin)
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3. Must display at least one sign at time of evaluation in two or more of the following categories*
Sensory: evidence of hyperalgesia (to pinprick) and/or allodynia (to light touch and/or deep somatic pressure and/or joint movement) Vasomotor: evidence of temperature asymmetry and/or skin colour changes and/or asymmetry Sudomotor/oedema: evidence of oedema and/or sweating changes and/or sweating asymmetry Motor/trophic: evidence of decreased range of motion and/or motor dysfunction (weakness, tremor, dystonia) and/or trophic changes (hair, nail, skin)
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| 4. There is no other diagnosis that better explains the signs and symptoms |
