different types of arthritis
Types of Arthritis. There are more than 100 different types of arthritis. Some of the more common types include: 1  Osteoarthritis. 2  This is the most common type of arthritis.3  It occurs when the cartilage covering the end of the bones gradually wears away. 4  Without the protection of the cartilage, the bones begin to rub against each other and the resulting friction leads to pain and swelling.ome of the more common types include: 1  Osteoarthritis. 2  Rheumatoid arthritis. 3  Gout.