Doctor, in anti-ena screen, my anti rnp and anti sm are both low positive. i have dry eyes and dry mouth symptons. what dieseae it could be? thanks!

See details: The RNP means nothing and I am not sure a low positive Sm means anything either. Sjogren's syndrome is most likely but you need to ask the question to the doctor who ordered the tests.

Sjogren's syndrome: Positive Anti-nuclear antibodies(ie Anti RNP, anti SM) can be a hallmark of the systemic autoimmune diseases, Dry eyes can cause chronic eye pain. If you also have a dry mouth & arthritis, ask your eyemd or md to evaluate specifically for Sjogren's syndrome.