This site is intended for healthcare professionals

Go to /sign-in page

You can view 5 more pages before signing in

Clinical features

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

The clinical symptoms of complex regional pain syndrome include:

  • pain:
    • allodynia or hyperalgesia
    • out of proportion to the severity of the original injury
    • frequently described as 'burning'
    • progressive
  • restlessness
  • stiffness in affected joints
  • altered hair growth
  • skin colour changes, due to alterations in skin blood flow
  • swollen limb

Clinical signs include evidence of abnormal sudomotor activity:

  • warmth of limb
  • excessive sweating
  • stiffness
  • oedematous limb, described as 'brawny'
  • dry skin
  • nail changes

Usually, the symptoms and signs are in the same limb as a preceding injury; sometimes they are in the distribution of just one peripheral nerve.

The diagnosis is made on the basis of pain, autonomic disturbance and functional impairment. However, other causes of pain and loss of function in the limb must be excluded first.


Related pages

Create an account to add page annotations

Add information to this page that would be handy to have on hand during a consultation, such as a web address or phone number. This information will always be displayed when you visit this page