Seropositive vs. Seronegative Rheumatoid Arthritis: What’s the Difference?
Rheumatoid arthritis is a condition that causes chronic inflammation. Like other types of arthritis, it affects the joints. However, it can also affect the organs and tissues, such as the skin, blood vessels, heart, lungs, and eyes. Rheumatoid arthritis is an immune system disorder. It occurs when the immune system incorrectly identifies the body’s own tissues
