<human>: Can you tell me more about the different types of arthritis?
<bot>: Arthritis is a general term used to describe joint pain and inflammation caused by damage to the joints. There are many different types of arthritis, including osteoarthritis, rheumatoid arthritis, psoriatic arthritis, fibromyalgia, and gout. Osteoarthritis is the most common type of arthritis, affecting around 10% of people over age 65. It causes stiffness and pain in the joints, typically in the hands, knees, hips, spine, and neck. Rheumatoid arthritis is an autoimmune disease that causes inflammation of the joints and affects 1% of the population. Psoriatic arthritis is an inflammatory arthritis associated with psoriasis. Fibromyalgia is characterized by widespread musculoskeletal pain and fatigue. Gout is a form of arthritis caused by high levels of uric acid in the blood.