Rheumatoid Arthritis does NOT come from mirena. Other people having it and having mirena is a coincidence...barely even that. Many people develop Rheumatoid Arthritis as they get older. Many people opt for mirena. That does not show a link between the two. Autoimmune and inflammatory diseases are likely caused by poor diet (bad fats and oils which raise omega 6 levels, an inflammatory agent) and lack of vitamin D. Please see a doctor who can help you find the real cause so you can treat the cause...because mirena did not do this to you.