Numbness or tingling in the hands and feet.Read More: What is an ear wrap? What are signs of nerve damage? Depending on your results, your doctor will talk to you about any additional tests or treatments that might be needed. If your EMG shows abnormal electrical activity when a muscle contracts, then you may have a herniated disc or a nerve disorder, such as ALS or carpal tunnel syndrome. What diseases can EMG diagnose?Īn EMG can be used to diagnose a wide variety of neuromuscular diseases, motor problems, nerve injuries, or degenerative conditions, such as: Is an EMG test painful? EMG testing may result in some discomfort, but it is usually well tolerated without any need for pain medication. During the test, one or more small needles (also called electrodes) are inserted through the skin into the muscle. The test is used to help detect neuromuscular abnormalities. When should you suspect multiple sclerosis?Įlectromyography (EMG) measures muscle response or electrical activity in response to a nerve’s stimulation of the muscle.What is the typical range of EMG signals?.How does a neurologist check for nerve damage?.
