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2698 pages added, reviewed or updated during the last month (last updated: 12/4/2021)

2698 pages added, reviewed or updated during the last month (last updated: 12/4/2021)


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Oxford criteria for the diagnosis of chronic fatigue syn.

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  • fatigue as the main symptom
  • definite onset and not lifelong
  • fatigue is severe, disabling and affects physical and mental function
  • fatigue should persist for 6 months or more and be present 50% of the time
  • other symptoms, especially myalgia, sleep and mood disturbance

Last reviewed 01/2018

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