For the past year, I have intermittent itchy hives that appear on my inner left wrist. I can t find anything in particular that triggers them, they just randomly appear every few weeks. It is now leaving scars where the hives have been. I do have a couple of autoimmune diseases: type 1 diabetes, hoshimoto s and limited systemic sclerosis. Could these hives be related to my autoimmune conditions? I have no history of medication or environmental allergies.