Is A Compressed Spinal Nerve Causing Itchy Arms?
Medical science is getting closer to understanding one of the most common causes of chronically itchy arms called brachioradial pruritus.
This means we’re also getting closer to helping people who suffer from this extremely frustrating condition!
A new study exploring the cause of brachioradial pruritus was just reported in the October issue of the Journal of the American Academy of Dermatology. The authors used MRI imaging to look at the cervical spine of 41 patients suffering from chronic itching of what was otherwise normal appearing skin on the outer surface of their forearms arms (called brachioradial pruritus). MRI imaging showed a very strong correlation between the itch and nerve compression in the patient’s neck. In fact, the exact site of the itch on the skin correlated precisely with the spinal location in the neck where the nerve resides that supplies that part of the arm skin (we call this a dermatome*).
What’s so interesting is that Read more »
*This blog post was originally published at Dr. Bailey's Skin Care Blog*
Although scratching has been everyone’s favorite method of removing an itch for thousands if not millions of years, scientists have not been able to uncover the neurological mechanism of this action. Now a team of University of Minnesota researchers used the long-tailed macaques as subjects in an experiment that showed that the nerves being scratched send different signals to the spinal cord and then to the brain depending on whether there’s an itch in the area. In addition to being a peculiar finding, this may lead to the development of stimulation devices that address acute itching, pain, or other nociceptive phenomena.
