Picture: When a nerve is pinched, the signal is interrupted somewhere along its path causing pain, numbness, tingling, or weakness.
Pinched Nerve

Pinched Nerve
(Nerve Entrapment or Nerve Compression)

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Pinched nerve facts

  • Nerve carry electrical signals from the brain to the body and vice-versa.
  • A pinched nerve can cause pain, numbness, tingling, or weakness along the path of the pinched nerve.
  • Most people improve from a pinched nerve with rest, ice, medication or physical therapy.
  • Weakness or wasting of the muscles from a pinched nerve can suggest permanent nerve injury.

Introduction to pinched nerve

Nerves are like electrical cords that carry information from the brain to the rest of the body and vice-versa. They are distributed throughout the entire body.

  • Motor (efferent) nerves carry information from the brain out to the body. This allows the brain to send commands to the various organs of the body. For example, these commands are sent to the muscles causing them to contract and move, or to the heart to either beat faster or slower.

  • Sensory (afferent) nerves send information from the body back to the brain for processing, including information about pain, touch, taste, temperature, or other sensations.

The information travels along the nerve by an electrochemical signal, much like information traveling along an electrical cord. When a nerve is pinched, the signal is interrupted somewhere along its path.

Reviewed by William C. Shiel Jr., MD, FACP, FACR on 2/7/2013


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Pinched Nerve - In Neck Question: Did you have an X-ray, CT scan, or MRI to diagnose your pinched nerve in the neck?
Pinched Nerve - In Back Question: What symptoms did you experience with your pinched nerve in the back?
Pinched Nerve - Describe Your Experience Question: Please describe your experience with a Pinched Nerve.
Pinched Nerve - Treatments Question: What was the treatment for your pinched nerve?
Pinched Nerve - In Neck, Treatment Question: What was the treatment for your pinched nerve?

Pinched Nerve Symptoms

The term "pinched nerve" is a colloquial term and not a true medical term. It is used to describe one type of damage or injury to a nerve or set of nerves. The injury may result from compression, constriction, or stretching. Symptoms include numbness, "pins and needles" or burning sensations, and pain radiating outward from the injured area. One of the most common examples of a single compressed nerve is the feeling of having a foot or hand "fall asleep." A "pinched nerve" frequently is associated with pain in the neck or lower back. This type of pain can be caused by inflammation or pressure on the nerve root as it exits the spine. If the pain is severe or lasts a long time, you may need to have further evaluation from your physician. Several problems can lead to similar symptoms of numbness, pain, and tingling in the hands or feet but without pain in the neck or back. These can include peripheral neuropathy, carpal tunnel syndrome, and tennis elbow. The extent of such injuries may vary from minor, temporary damage to a more permanent condition. Early diagnosis is important to prevent further damage or complications. Pinched nerve is a common cause of on-the-job injury.

SOURCE:
National Institute of Neurological Disorders and Stroke

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