Before we begin: Paralysis is a loss of muscle function in part of your body, when messages between the brain and muscles are disrupted. Learn about causes and coping.
This tutorial walks you through everything you need to know about paralysis. We explain it in plain language, step by step, so whether you are a student, a patient, or simply curious, you will come away with a solid understanding.
We cover what it is, why it matters, how it is diagnosed, and what you can do about it. Key facts are called out along the way.
Paralysis is the loss of muscle function in part of your body. It happens when something goes wrong with the way messages pass between your brain and muscles. Paralysis can be complete or partial. It can occur on one or both sides of your body. It can also occur in just one area, or it can be widespread. Paralysis of the lower half of your body, including both legs, is called paraplegia. Paralysis of the arms and legs is quadriplegia.
Most paralysis is due to strokes or injuries such as spinal cord injury or a broken neck. Other causes of paralysis include:
Nerve diseases such as amyotrophic lateral sclerosis
Autoimmune diseases such as Guillain-Barre syndrome
Bell's palsy, which affects muscles in the face
Polio used to be a cause of paralysis, but polio no longer occurs in the U.S.
Also known as: Hemiplegia, Palsy, Paraplegia, Quadriplegia.
Related topics: Hemiplegia, Paraplegia, Quadriplegia.
Categories: Brain and Nerves.
Source: National Institutes of Health — National Institute of Neurological Disorders and Stroke.
Key Takeaways
Understanding paralysis is an important part of taking charge of your health. Here is what to remember:
- Know the signs — Recognizing early symptoms can lead to earlier diagnosis and better outcomes.
- Talk to your provider — If you have concerns or a family history of this condition, bring it up at your next checkup.
- Stay informed — Medical knowledge evolves. Keep learning and asking questions.
- You are not alone — Many people deal with this condition. Support groups and educational resources can help.