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Diagnosis & Treatment. Essential tremor is a type of uncontrollable shake or tremble of part of the body. Most people with essential tremor experience a trembling, up-and-down movement of the hands. The arms, head, eyelids, lips and other muscles can also be affected. A tremor in the voice box (larynx) may cause a shaky voice.
We're sorry, an error occurred. Essential tremor, also known as benign essential tremor, is a brain disorder that causes a part of your body to shake uncontrollably. The unintentional shaking motion is called a tremor. The hands and forearms are the most commonly affected areas. However the following can also be affected: