What is a trapped nerve?

Compressed Nerve: Entrapment Neuropathy. Nerves extend from your brain and spinal cord and go to all parts of your body. Nerves carry signals. Nerves are vulnerable when they travel through narrow spaces and are compressed. When the nerve is pressed between tissues like ligaments, tendons and bones, you can get symptoms like pain, numbness, tingling, pins and needles, weakness. Find out what is trapping the nerve.