Neuromuscular Ultrasound (NMUS)

What is Nerve Ultrasound (NMUS)?

NMUS uses sound waves to examine the size, structure, and movement of the nerves in your limbs.

Your doctor may recommend this test to:

• Investigate numbness, tingling, or pain in the hands or feet
• Assess for suspected nerve entrapment.

How should I prepare for NMUS?

• Wear comfortable, loose-fitting clothing
• Avoid applying heavy creams or lotions on the limbs
• Not required to fast
• Continue with your regular diet and medications 
• If you feel unwell, please inform the lab prior to the test

How is NMUS performed?

The test is done by a doctor or a sonographer and takes about 30 minutes.

• You will be seated or lying on a bed, depending on the area being examined.
• A clear, water-soluble gel is applied to a handheld ultrasound probe.
• The probe is moved along the area being examined (such as the arm or leg). 
• You may be asked to change position or move a limb as part of the assessment.
• Once the test is complete, the gel is cleaned off.
• A report will be sent to your doctor and he/she will discuss the results with you at your next appointment.

Frequently Asked Questions about NMUS

Is the test safe?

Yes, the test is: 

• Non-invasive (no needles)
• Radiation-free
• Widely used (the modality is similar to that for pregnancy scans)
• A doctor or sonographer will be present throughout the process. If you feel unwell, please inform them.

Can I use Medisave to pay for this test?

This test may be claimable under:

• Flexi-MediSave for Seniors; or
• Outpatient scans for diagnosis or treatment of a medical condition.

Please refer to the Ministry of Health's Outpatient Care page for the latest claim limits and eligibility criteria.

For more details, please refer to the Ministry of Health’s Outpatient Care information. 

The information is correct as of July 2026 and subject to revisions without notice.