Tremor

What is it?

Tremor is the most common movement disorder. It is classified by when it occurs: resting tremor (present at rest, as in Parkinson's disease), action tremor (during voluntary movement), and postural tremor (when holding a position). Essential tremor is the most common cause — often familial and affecting the hands during action. Physiologic tremor is a normal phenomenon exaggerated by caffeine, anxiety, or medications. A new, worsening, or asymmetric tremor warrants neurological evaluation.

Common causes

When to see a doctor

• 1Tremor that is new, worsening, or unilateral (one-sided)
• 2Tremor accompanied by stiffness, slow movements, or balance problems (Parkinson's signs)
• 3Tremor with double vision, slurred speech, or coordination loss
• 4Tremor that interferes with daily activities such as writing, eating, or dressing
• 5Tremor in the context of significant anxiety, weight loss, or rapid heart rate (thyroid)

What you can do

• ✓Reduce or eliminate caffeine — a common physiologic tremor trigger
• ✓Manage stress and anxiety with relaxation techniques, therapy, or mindfulness
• ✓Maintain a consistent meal schedule — low blood sugar can worsen tremor
• ✓Use weighted utensils or adaptive tools if hand tremor affects eating or writing
• ✓Avoid alcohol as a tremor suppressant — dependence risk is significant

Conditions that cause this symptom

Medications that may help

Treatment depends on the underlying cause. Always consult your provider before starting any medication.

Frequently asked questions