Which clinical history findings are characteristic of chronic fatigue syndrome (CFS)?

Updated: Aug 29, 2018
  • Author: Jefferson R Roberts, MD; Chief Editor: Michael Stuart Bronze, MD  more...
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Patients with CFS typically report experiencing postexertional fatigue and feeling excessively tired after relatively normal tasks that they did for years before CFS without any particular problem. Patients also report fatigue even after prolonged periods of rest or sleep. At least one quarter of patients with CFS are bed- or house-bound at some point in their illness. Patients with CFS often report a history of antecedent flulike infection that precipitated the prolonged state of fatigue and followed the initial illness.

Patients with CFS typically report problems with short-term memory but not with long-term memory. They may also report verbal dyslexia that manifests as the inability to find or say a particular word during normal speech. This typically disturbs patients with CFS and may interfere with their occupation.

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