Electromyography (EMG)

An electromyography measures the electrical activity in your muscles as a way to measure how your nerves are working. Thin needles are placed in specific muscles, and then your doctor will ask you to move the muscle. The doctor will look at the electrical signals to learn more about how your body is operating. A nerve conduction study is often done along with an EMG.

Your muscles have electrical signals moving through them when they are working, but not when they are resting. Trained doctors can look at the electrical signals in your muscles to help diagnose conditions.

During the EMG, you might have the needle or needles put in different parts of your body so the doctor can do a thorough test. The needles might be painful for a bit, but the soreness will fade after a few days.

Physicians who perform EMGs

Find a specialist in your location.