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Electromyography (EMG)

Evaluate Muscle and Nerve Function with Precision

Electromyography (EMG) is a specialized test used to assess the electrical activity of muscles and nerves. It helps identify whether weakness, numbness, tingling, or pain is due to a nerve disorder, muscle disease, or an issue at the nerve-muscle junction. Often paired with a nerve conduction study, EMG can detect conditions such as carpal tunnel syndrome, peripheral neuropathy, muscular dystrophy, ALS, and other neuromuscular disorders.

During the exam, a fine needle is inserted into specific muscles to record their electrical activity at rest and during movement. This helps pinpoint abnormal nerve or muscle function. The procedure is performed by a physiatrist and typically lasts around 30 minutes.

At DouleurMD, we offer quick access to EMG appointments, with results sent promptly to your referring physician. Our expert evaluations support accurate diagnoses and effective treatment planning—whether you’re experiencing muscle weakness, unexplained nerve pain, or mobility issues.

Related Conditions

Carpal Tunnel Syndrome

Carpal Tunnel Syndrome

Nerve Entrapment

Nerve Entrapment

FAQ

What is an EMG?

An EMG (electromyogram) measures the electrical signals of muscles at rest and during contraction. It helps assess how well your nerves communicate with your muscles.

Why would I need an EMG?

EMG is used to diagnose a variety of conditions such as carpal tunnel syndrome, neuropathies, muscular dystrophy, ALS, or other causes of muscle weakness, numbness, or tingling.

What happens during the test?

A small needle electrode is inserted into specific muscles to record their electrical activity. You may feel a mild discomfort or twitch, but most patients tolerate it well.

Is EMG safe?

Yes. It’s a low-risk, well-established diagnostic procedure. You may feel a brief discomfort from the needle, but the test is generally well tolerated.

How long does the exam take?

Typically, the exam lasts about 30 minutes. You can return to your regular activities right after.

What should I do before my EMG test?

To ensure accurate EMG test results, please follow these instructions:

  • Do not apply any creams, lotions, or oils on your skin, especially on areas that will be tested (usually arms or legs). These products can interfere with the electrical signals.
  • Wear loose, comfortable clothing that can be easily removed or rolled up to access the muscles being tested.
  • Eat normally before the test unless instructed otherwise by your doctor.
  • Inform the clinic if you are taking blood thinners or have any implanted devices (e.g., pacemaker or defibrillator).

Proper preparation helps your doctor get the most reliable and meaningful results from your EMG.

 

Should I stop taking any medication before the EMG?

Certain medications—such as muscle relaxants or anticholinergics—can affect EMG results. Let your doctor know in advance about any medications you are taking.

Do I need a referral?

Yes, EMG tests are typically prescribed by a physician.

Start your journey to a pain-free life with personalized care designed just for you—our team is here to support every step.