Rheumatoid arthritis has a huge set of issues. The one that perplexed me for a long time was intense itching. The itching in my hands becomes so intense it borders on the edge of being pain. My wrists are included. Sometimes my feet and ankles are involved too. My hands are the worst. The itching occurs in a random manner. It doesn’t seem related to anything except it is in proximity to my RA affected joints. Diclofenac topical gel relieves it. Lucky for me.
Why does RA skin itch? What is the itch connection to RA? I did a little research on it. This is what I found. There is a lot of discussion on vasculitis, medication side effects, and other itch producing diseases such as eczema. Then there are a few reports that discuss the mechanisms of inflammation seen in RA that trigger the nerve receptors that cause itching.
I think mine is simply caused by the inflammation of rheumatoid arthritis. The itching is random. It is intense. Your itching may be the same or it may have a more complex cause. Put it on your list to discuss with your rheumatologist.