What are intention and action tremors?

Tremors: 'intention' and 'action' tremors are the same. Tremors can be described as falling in two broad categories: a resting tremor (which occurs with the limb at rest - like in some Parkinson's patients) and an intention or action tremor that occurs and worsens with a specific movement or action. They are treated differently, and are different than the normal 'essential' tremor which everyone has.

Tremors: Action tremors occur with movement, such as writing, drawing, or making gestures with the hands. Intention tremors occur with postural movement, such as when you hold your hands straight away from your body, as in pointing. Essential tremor causes these. Hyperthyroidism, changes in blood chemistry and medicines may also cause these.