I have a couple of autoimmune conditions already - pernicious anaemia is one of them. I have just had an autoimmune panel of tests done and have a positive result for ANA. Looking at my test results, I had the same several years ago too. I was being investigated for lupus then (there's family history of it) but it wasn't mentioned again, the pernicious anaemia diagnosis sort of took over.
Is there anything else which causes a positive ANA result?