Rheumatoid arthritis - auto-immune disease - does it boost or suppress immune system?

Mild suppression: In rheumatoid arthritis, the immune system acts against one's tissues. So, part of the immune system is too active, but in a detrimental way. On the other hand, patients with RA may be more likely to develop infections. Even more so, if they receive medications that suppress the overactive immune system.

Mostly neutral alone: But treatment clearly suppresses the body's immune system.