In medical terms, a tremor is defined as an involuntary shaking that originates in a functional region of the body. These functional regions include, among others, the arms, legs, and head. The characteristic oscillating tremor stems from an involuntary muscle contraction, which the affected person perceives as a movement disorder.
Further information on tremor, as well as a list of selected tremor specialists, can be found below.
Definition: What is a tremor?
A tremor, also known as uncontrolled shaking, is an involuntary, rhythmic muscle movement that can occur in various parts of the body, including
- hands,
- arms,
- head,
- vocal cords,
- torso, and
- legs.
The symptoms of a tremor can manifest as an action tremor (shaking during movement) or a resting tremor (shaking at rest).
Stress and cold temperatures can often lead to temporary tremors, while neurological conditions such as Parkinson’s disease, hyperthyroidism, multiple sclerosis, or other neurological disorders can cause persistent tremors.
When seeking appropriate treatment for tremor, diagnosing the underlying cause plays a crucial role. A neurologist is the appropriate specialist for the diagnosis and treatment of tremor.

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Causes of Tremor
The causes of tremors can be very diverse:
External factors: Here, the body reacts to certain environmental conditions. Cold-induced tremor, for example, helps the body generate additional heat through movement. A tremor can also occur due to exhaustion, when the muscles are overworked and can no longer maintain tension.
Psychological factors: Stress, tension, and fear can also cause psychological strain to manifest as a tremor. While distraction may provide short-term relief, in the long term it is necessary to address the underlying psychological issues to release the tension in the body.
Essential tremor: This type of tremor is a special case, as its exact cause has not yet been conclusively determined. However, a genetic origin seems likely, as it tends to run in families.
A symptom of an underlying condition: There are a number of conditions in which tremor can occur as a symptom:
- Hyperthyroidism
- Alzheimer’s disease
- Graves’ disease
- Dystonia
- Multiple sclerosis
- Amyotrophic lateral sclerosis
- Stroke
- Wilson's disease
- Organ failure
- Poisoning
- Substance Abuse
Symptoms: What are the signs of a tremor?
A tremor manifests as involuntary, rhythmic muscle movements, which are usually perceived as shaking. The symptoms of a tremor can vary depending on the type and cause of the tremor and may affect different parts of the body.
A tremor can manifest as a movement or action tremor, meaning it occurs or intensifies during purposeful movements or when holding a position. A resting tremor, on the other hand, occurs when the muscles are relaxed and the body part is not being used.

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When should you see a doctor for a tremor?
That is the most important question when dealing with such a vague symptom. In most cases, the tremor has no pathological cause that requires medical treatment. However, this does not mean that you should wait and see if the tremor goes away on its own if you are experiencing severe symptoms.
A doctor who specializes in neuromuscular and cerebral conditions is called a neurologist. However, a visit to your primary care physician can be a first step. Tremors sometimes arise from very trivial causes, such as anemia or magnesium deficiency.
A visit to the doctor is essential if:
- the tremor persists for a long time and does not go away
- the tremor cannot be attributed to a clear cause
- the tremor recurs repeatedly during certain movements
Treatment of Tremor
Treatment for tremor depends on its cause.
For essential tremor, beta-blockers and anticonvulsants are used to reduce the severity of the tremor.
In cases of psychogenic tremor, antidepressants, anxiolytics, or benzodiazepines may be prescribed for acute symptoms. However, for a long-term solution, the doctor will arrange for psychological counseling with a therapist.
If the tremor is a symptom of an underlying condition, that condition must be treated.
Conclusion
In summary, tremor—or uncontrolled shaking—can be caused by a variety of factors. It is important to see a doctor if you experience persistent or recurring shaking in order to identify and treat the underlying cause. With the right diagnosis and treatment, a tremor can be successfully controlled and even eliminated.
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About the medical author
Sabine Schneider
Editor-in-Chief
Sabine Schneider – medical author: Explore expert articles and medical expertise in the Leading Medicine Guide.
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- S2k-Leitlinie „Tremor“ (AWMF-Register-Nr. 030-011), Stand 25.08.2022: register.awmf.org/de/leitlinien/detail/030-011
