Tremors are rhythmic shaking of a body part caused by muscle contraction. Tremors are caused by various causes and most commonly, is hereditary and physiological. Tremors can be seen only at rest (as in Parkinson’s disease) or can be predominantly seen during various actions. When tremors are present during action they may affect various activities like writing, feeding and personal hygiene.

In extreme cases, they make a patient almost dependent for every activity of daily living. Tremors are easily and most efficiently controlled by various drugs. However in few drug therapy resistant cases, surgical therapy completely abolishes the tremors.