Essential tremor does not usually cause numbness. Its main symptom is rhythmic shaking, most often in the hands when you reach, write, or hold an object. Numbness—reduced feeling or a pins-and-needles sensation—is not a typical defining feature. If you have both tremor and numbness, the numbness may have another cause, such as pressure on a nerve, and deserves separate attention if it persists or changes.
What Is the Difference Between Essential Tremor and Numbness?
Essential tremor is a neurological condition that causes involuntary, rhythmic shaking. The shaking often becomes noticeable during activities such as drinking from a glass, using a phone, writing, or handling utensils. It can also affect the head or voice. According to Mayo Clinic, essential tremor most often affects the hands and is particularly noticeable during movement.
Numbness is different because it involves changes in sensation rather than movement. A person experiencing numbness may feel that part of the body has lost its normal sense of touch. Tingling, burning, or a pins-and-needles feeling may occur as well. These sensations can affect the fingers, hands, feet, arms, or legs.
Although shaking and numbness can occur at the same time, they are not interchangeable symptoms. Essential tremor primarily affects movement, so new or persistent numbness should not automatically be attributed to the tremor condition.
What Could Cause Numbness Alongside Essential Tremor?
Several conditions can affect sensation independently of essential tremor. The possible explanation depends on where the numbness occurs, how it begins, whether it comes and goes, and whether other symptoms are present. Mayo Clinic's overview of numbness explains that pressure, irritation, or damage affecting nerves can interfere with normal sensation.
- Nerve compression: Pressure on a nerve, including at the wrist or along the spine, can cause numbness or tingling in the area supplied by that nerve. Carpal tunnel syndrome is one example that can affect sensation in the hand and fingers.
- Peripheral neuropathy: Damage to nerves outside the brain and spinal cord can cause altered sensation, often in the hands or feet. Diabetes, certain vitamin deficiencies, some medications, and physical nerve injuries are among the possible causes. MedlinePlus explains the causes and symptoms of peripheral neuropathy.
- Temporary pressure on a body part: Remaining in one position for a long time or putting pressure on an arm or leg can temporarily produce numbness or tingling.
- Other medical conditions: Problems affecting blood flow, certain infections, thyroid disorders, and other neurological conditions can also cause changes in sensation.
These are examples of possible explanations, not a way to identify the cause of an individual's symptoms. More than one condition can be present at the same time, so the tremor and the numbness may need separate consideration.
Can Essential Tremor Make the Hands Feel Strange?
Hand shaking can make activities requiring steady movements more difficult. For example, a person may struggle to hold a cup, write clearly, or use small objects. Those difficulties are related to the tremor itself and do not necessarily mean that sensation has been lost.
It is useful to distinguish between a hand that shakes and a hand that feels numb, tingly, painful, or less sensitive to touch. If your fingers feel unfamiliar or you have trouble sensing objects, mention these changes during a medical appointment rather than assuming they are part of essential tremor.
Some people describe weakness or difficulty using an affected hand when discussing their symptoms. Weakness, reduced coordination, and numbness are not the same thing, however, and can have different explanations. A healthcare professional can assess these changes alongside the tremor and determine whether further evaluation is appropriate.
When Should Numbness Be Checked by a Healthcare Professional?
Arrange a medical evaluation if numbness is persistent, keeps returning, gradually worsens, affects everyday activities, or occurs with pain, weakness, or problems with balance. Unexplained changes in sensation deserve attention even when essential tremor has already been diagnosed. MedlinePlus guidance on numbness and tingling describes several possible causes and explains when medical assessment is appropriate.
During an assessment, a healthcare professional may ask when the numbness started, which parts of the body are affected, how long episodes last, and whether the symptoms change with movement or position. They may also review your medical history and medicines and examine sensation, strength, reflexes, and coordination. Depending on the findings, additional tests may be considered to investigate possible nerve or other medical problems.
When is numbness an emergency?
Seek emergency medical care immediately if numbness begins suddenly, particularly when it affects one side of the face or body or occurs with weakness, difficulty speaking, confusion, a sudden severe headache, dizziness, or trouble walking. These symptoms can indicate a stroke or another urgent neurological problem. Do not assume that sudden numbness is related to an existing tremor diagnosis, even if it improves after a short time. Mayo Clinic's guidance on when to worry about numbness and tingling describes symptoms that require immediate medical attention.
Does Numbness Mean Essential Tremor Is Getting Worse?
Not necessarily. Numbness alone does not establish that essential tremor is progressing. Tremor symptoms can change over time, but a new sensory symptom should be considered on its own rather than treated as proof that the movement disorder has worsened.
If you notice both increased shaking and new numbness, explain when each symptom began and whether they change together. This information can help a healthcare professional distinguish changes in the tremor from a possible nerve problem or another condition. Do not change or stop prescribed tremor medication without discussing it with the prescribing professional.
The key point: Essential tremor is primarily a condition involving involuntary shaking, not loss of sensation. Numbness occurring alongside it may have a separate explanation. Persistent or worsening symptoms should be assessed, and sudden numbness accompanied by other neurological symptoms requires emergency care.