We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What is Hyperreflexia?

Malcolm Tatum
Updated Mar 03, 2024
Our promise to you
The Health Board is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At The Health Board, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject-matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

Hyperreflexia is a condition in which reflexive responses are stronger than what is considered a normal response. The increased response to normal stimuli may result in ongoing episodes of twitching or movements that are generally classified as spastic. Sufferers have little to no control to these exaggerated reflexive responses. There are a number of causes for hyperreflexia, including spinal cord injury and an adverse reaction to medication.

An individual suffering with this issue is likely to have a condition that is interfering with the control normally managed by the higher brain center over the lower neural pathways. The end result is that some type of stimuli that would normally produce nothing more than a mild reaction triggers an exaggerated response. This often manifests in sudden movements that are as surprising to the individual with the condition as those who are nearby.

One of the more common causes for hyperreflexia is damage to the spinal cord. This damage may be sustained in some type of accident, or have taken place during the course of surgery. Depending on the nature of the damage to the spinal cord, repairing that damage may at least partially reverse or weaken the overactive reflexes, allowing the individual to go about daily tasks with more confidence.

It is also possible for hyperreflexia to develop as a reaction to different types of medications. Should a given medication interfere with the balance of electrolytes in the body, the result may be over-responsive reflexes. Medications that alter the production or use of serotonin in the brain may also trigger uncontrollable twitching or movements of the arms and legs. Often, if the medication is exchanged for another medicine that does not cause an imbalance in serotonin or electrolytes, the hyperactive movements will eventually cease.

Brain trauma is also a possible underlying cause of hyperreflexia. Assuming damage to the brain can be repaired or heal over time, there is a good chance that the spasms and uncontrollable movements will become less frequent and severe. In order to manage the symptoms during recovery, a physician may prescribe some type of anti-spasmodic that can minimize the outbreaks and allow the individual to enjoy a more normal quality of life.

Treatment for hyperreflexia will vary, depending on the reason or reasons for the condition. There is no specific amount of time that must pass before the responses are back within normal limits. For this reason, anyone suffering with this condition should work closely with an attending physician and develop expectations based on the counsel and information provided by that physician.

The Health Board is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Malcolm Tatum
By Malcolm Tatum
Malcolm Tatum, a former teleconferencing industry professional, followed his passion for trivia, research, and writing to become a full-time freelance writer. He has contributed articles to a variety of print and online publications, including The Health Board, and his work has also been featured in poetry collections, devotional anthologies, and newspapers. When not writing, Malcolm enjoys collecting vinyl records, following minor league baseball, and cycling.
Discussion Comments
By anon993495 — On Nov 19, 2015

I have been diagnosed with spasticity, clonus and hyperflexia due to TBI suffered in an auto accident.

By stoneMason — On Aug 10, 2013

@feruze-- My wife has both hyperreflexia and clonus as a result of a spinal cord injury from a car accident.

The two are similar, and the causes can be the same. Hyperreflexia is when the reflex responses are exaggerated and clonus is when there are multiple involuntary muscle contractions.

It's easy to confuse these together but doctors have different physical tests to diagnose them and my wife has been diagnosed with both. Doctors are still trying to figure out the stimulus that's causing these in her. Apparently, the only way to treat these conditions is to find and eliminate the stimulus. It's probably pressure on one of the nerves in her spinal cord. She has to go through a few more MRIs next week.

By bear78 — On Aug 09, 2013

I just found out that my dad has hyperreflexia and clonus. Does anyone else have this?

By burcidi — On Aug 09, 2013

I don't have autonomic hyperreflexia but I completely understand how some medications can lead to it.

I'm taking an SSRI medication (selective seratonin reuptake inhibitor). Ever since I've started taking the medication, I've been experiencing an odd twitching. It doesn't happen frequently, usually once or twice a day. It usually happens when I'm in bed and about to sleep. I suddenly twitch. It's a very weird feeling because I have no control over it whatsoever.

I know that autonomic hyperreflexia is much more severe and troublesome, but I'm sure if I took a much higher dose of this medication, I could develop it.

Malcolm Tatum
Malcolm Tatum
Malcolm Tatum, a former teleconferencing industry professional, followed his passion for trivia, research, and writing...
Learn more
The Health Board, in your inbox

Our latest articles, guides, and more, delivered daily.

The Health Board, in your inbox

Our latest articles, guides, and more, delivered daily.