A pinched nerve can cause shooting left arm pain, according to WebMD. However, individuals who experience sudden left arm pain should seek medical advice, as Mayo Clinic states.
When inflammation compresses a nerve it can cause pain to radiate through the arm. The pain can range from moderate to severe, and those who experience it should see a doctor to determine the cause.
Pinched nerve pain that goes ignored can lead to further problems, including:
- Peripheral neuropathy
- Carpal tunnel syndrome
- Tennis elbow
Other causes of left arm pain can include heart attacks, which is why it is important to see a doctor if the pain has a sudden onset.