Symptom guide
Hand tremor when holding things: causes, red flags and when to get it checked
A tremor that appears when you hold a cup, write or reach for something is called an action tremor. The commonest causes are essential tremor, caffeine, anxiety, medicines and an overactive thyroid. A tremor at rest with slowness points more toward Parkinson disease. A clinical examination can usually tell them apart.
Last checked: 2026-10-03
Key facts
At a glance.
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Action tremor
Shaking that appears when using the hands, not when they are resting, is typical of essential or physiological tremor.
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Rest tremor
A tremor present at rest that eases on movement, with slowness or stiffness, suggests Parkinson disease.
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Treatable triggers
Caffeine, stress, thyroid overactivity, alcohol withdrawal and some medicines can cause or worsen it.
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Alcohol clue
Essential tremor often improves briefly with alcohol, which is a clue, not a treatment.
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Who to see
GP; neurology if progressive, one-sided or accompanied by slowness.
What this symptom usually means
When we hold the arm out or reach for an object, every person has a very fine tremor that is usually invisible. It becomes visible when enhanced by anxiety, caffeine, fatigue or a medical cause, or when a neurological condition amplifies it.
Possible causes, from most to least common
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Enhanced physiological tremor: fine, fast shaking from caffeine, stress, tiredness, low blood sugar or exercise.
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Essential tremor: a slowly progressive action tremor of both hands, often running in families, which may later affect the head or voice.
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Medicines: salbutamol and other inhalers, antidepressants, lithium, valproate, steroids, thyroid hormone excess and some stimulant drugs.
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Overactive thyroid, with weight loss, heat intolerance and palpitations.
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Alcohol withdrawal or heavy use, and withdrawal from sedatives.
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Parkinson disease: rest tremor, often starting in one hand, with slowness, stiffness and reduced arm swing.
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Dystonic tremor, cerebellar tremor, and functional tremor, where the tremor varies with distraction.
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Wilson disease in younger people and other rare causes.
Features that point to something more serious
Tremor that is one-sided and progressive, slowness of movement, shuffling gait, reduced facial expression, clumsy walking, new tremor after starting a medicine, abrupt onset, or associated neurological signs such as unsteadiness and speech change need specialist review.
Red flags: when to seek help
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Call 999: sudden tremor with confusion, weakness, facial droop or speech difficulty.
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Same-day GP: tremor with fever, sweating and agitation after stopping alcohol, or new tremor after a medicine overdose.
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GP within a few weeks: progressive tremor, one-sided tremor, or tremor with slowness.
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Routine GP: long-standing mild shaking that interferes with daily tasks.
What a doctor will ask and examine
Doctors ask when the tremor happens (rest, posture or movement), which hand, family history, caffeine, alcohol, medicines, weight loss, heat intolerance and other neurological symptoms. They examine the tremor at rest, outstretched, during finger-to-nose testing and when drawing a spiral, as well as tone, speed of movement, walking, and the thyroid.
Tests that are commonly used and why
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Thyroid function blood tests: to exclude an overactive thyroid.
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Blood tests for electrolytes, liver and kidney function, and glucose.
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Dopamine transporter (DaT) scan: sometimes used by specialists to separate Parkinson disease from essential tremor.
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MRI brain: if there are other neurological signs or an unusual pattern.
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Copper studies in younger patients with a tremor and liver or psychiatric symptoms.
Self-care and the usual route
Reduce caffeine, keep a regular sleep pattern, and manage anxiety. Heavier cups with lids, weighted utensils and wrist weights can help daily tasks. Avoid relying on alcohol to settle the tremor. Several medicines can help essential tremor when it interferes with life; these are prescribed after assessment.
The NHS route is a GP with neurology referral if needed. Private neurology consultations, thyroid tests and DaT scans can be arranged directly.
Frequently asked
Questions people ask.
Quick, plain-English answers to the questions we hear most.
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Why do my hands shake only when I hold something?
That points to an action tremor, such as enhanced physiological tremor or essential tremor, rather than the rest tremor typical of Parkinson disease.
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Is it Parkinson disease?
Parkinson tremor usually occurs at rest, often in one hand, with slowness and stiffness. An action tremor in both hands is more often essential tremor.
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Can caffeine make it worse?
Yes. Caffeine increases tremor amplitude in most people, and reducing it often helps within days to weeks.
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Does anxiety cause shaky hands?
Yes. Adrenaline increases physiological tremor, which is why hands shake when nervous.
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Is essential tremor hereditary?
Often. Many people with essential tremor have an affected relative, though not always.
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What medicines cause tremor?
Salbutamol, lithium, valproate, some antidepressants, steroids and too much thyroid hormone are common ones.
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Does alcohol help?
Alcohol can briefly reduce essential tremor, but it is not a treatment and rebound worsening and dependence are risks.
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Do I need a brain scan?
Usually not. Scans or DaT imaging are considered when the picture is unclear, asymmetric or accompanied by other signs.
Where this comes from
Sources and checking.
This guide is for information, not medical advice.
Your GP or consultant knows your history and can tell you which parts apply to you. If your symptoms are severe, rapidly worsening, or come with red-flag features, seek urgent medical care. Figures and availability change, so treat them as a guide and confirm with the provider.
Published 2026-10-03, next review 2027-10-03.
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NHS: Parkinson's disease (nhs.uk/conditions/parkinsons-disease/)
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NHS: Tremor (nhs.uk/conditions/tremor/)
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NICE guideline NG71: Parkinson's disease in adults