10 Basic Facts about Rheumatoid Arthritis

Rheumatoid arthritis (RA) is a chronic disease in which various joints in the body are inflamed, leading to swelling, pain, stiffness, and the possible loss of function. Read on for more facts on RA.

By The HealthCentral Editorial Team

RA affects 1.3 million Americans

RA affects 1.3 million Americans

According to the Arthritis Foundation, rheumatoid arthritis (RA) affects about 1.3 million Americans.

By The HealthCentral Editorial Team— Last Modified: 11/29/2012, First Published: 12/13/2011