Electromyography (EMG) can detect the cause of issues such as muscle weakness, numbness, spasms, paralysis or pain. Franciscan Health neuro specialists offer EMG testing as a diagnostic tool for a variety of nerve and muscle disorders.
Electromyography (EMG) assesses the health of your muscles as well as the nerves that control your muscles. EMGs are ordered most often when patients are experiencing muscle weakness. The test helps doctors determine if weakness is due to a neurological disorder.
During an EMG, a very thin needle is inserted into your muscle. An electrode on the needle measures electrical activity given off by the muscle. Once the needle is inserted, you may be asked to contract or flex the area so the technician can gauge the response.
You may feel some discomfort during an EMG, but most people are able to proceed without trouble. The area where electrodes are inserted may be bruised or feel tender for a few days afterward.