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Clinical Evaluation and Management of Thumb Fasciculations in 2026

"Thumb fasciculations—defined as involuntary, localized muscle twitches or rippling movements originating from the intrinsic or extrinsic muscles of the thumb—represent a common clinical presentation evaluated by neurologists and neuromuscular specialists. While the vast majority of thumb twitches are benign and related to physiological factors, persistent fasciculations can occasionally indicate underlying neuropathic or motor neuron pathology. Understanding the etiology, clinical evaluation protocols, and differential diagnosis is essential for accurate patient management in 2026. Pathophysiology and Anatomical Origins of Thumb Twitches Thum..."

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