The exact cause of complex regional pain syndrome isn't well understood but may involve abnormal inflammation or nerve dysfunction.

Complex regional pain is characterized by pain that is greater than would be expected from the injury that causes it.

Treatment usually consists of medications, heat or cold therapy, physical therapy, and biofeedback.

Chronic arm or leg pain developing after injury, surgery, stroke, or heart attack.

  • RSD

Consult a doctor for medical advice

Sources:  Mayo Clinic and others.

Rare

< 0
Cases per year

Fewer than 200,000 US cases per year

Treatment can help, but this condition can't be cured

Requires a medical diagnosis

Lab tests or imaging not required

Chronic: can last for years or be lifelong

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