Ankylosing spondylitis/axial spondyloarthritis (AS) is a condition that mainly affects the spine. The joints of the neck, back and pelvis become inflamed, causing pain and stiffness.
Osteoarthritis (OA) is a condition that affects the whole joint including bone, cartilage, ligaments and muscles. In later stages it is characterized by loss of the cartilage but there are many causes.
Rheumatoid arthritis (RA) is an autoimmune disease that causes pain and swelling of the joints. The normal role of your body’s immune system is to fight off infections to keep you healthy.