Tremor causes

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1];Associate Editor(s)-in-Chief: Zehra Malik, M.B.B.S [2]

Overview

Common causes of tremor includes

Common Cause of Tremor	Type of Tremor	Main Feature of Disease
Flaccid	Bilateral/unilateral lower motor neuron	Weakness, hyporeflexia, lack of normal muscle tone
Spastic	Bilateral upper motor neuron(UMN)	Weakness, hyperreflexia, hypertonicity
Unilateral UMN	Unilateral upper motor neuron	Weakness, reduced range of motion, decreased fine motor control of tongue & lips
Ataxic	Cerebellum	Poorly coordinated movements of speech mechanism, scanning/drunken speech
Hyper-kinetic	Basal ganglia	Quick involuntary movements (hyperkinesis)
Hypo-kinetic	Basal ganglia	Less movement (hypokinesis), increased muscle tone
Mixed	More that one type of dysarthria co-exist	Mixed presentation