


When you have brachioradial pruritus, the intensely itchy skin looks completely normal before you start scratching. Common examples include: dry skin, a contact allergic reaction like poison oak or wool allergy, psoriasis, etc. Of course, there are many other reasons why arm skin can itch, but usually there’s a rash on the arm and possibly on other parts of the body, too. I’ve been able to give my patients the name of the condition, but it’s been frustrating for all of us because I haven’t been able to give them a good explanation for the problem. Patients with brachioradial pruritus can actually draw on their skin exactly where the itchy area stops and starts. It’s another one of those strange conditions where a precise part of the skin itches intensely, but it looks entirely normal.
