One of the most common inflammatory diseases in the world is arthritis. Characterised by painful, aching joints, arthritis falls into two main categories: osteoarthritis (also known as degenerative joint disease) and rheumatoid arthritis. Although any joint in the body can be affected by arthritis, particular forms of the disease tend to occur in certain parts of the body. For example, rheumatoid arthritis most commonly affects the wrists and knuckles, feet, neck, and larger joints in the limbs