How are reflexes affected in Guillain-Barre syndrome (GBS)?

Updated: Jul 14, 2021
  • Author: Michael T Andary, MD, MS; Chief Editor: Milton J Klein, DO, MBA  more...
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Reflexes are absent or reduced early in the disease course. Hyporeflexia or areflexia of involved areas represents a major clinical finding on examination of the patient with GBS. Pathologic reflexes, such as the Babinski sign, are absent. Hypotonia can be observed with significant weakness.

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