Arthritis is characterized by pain and swelling in the joints, and is a catch-all term for many joint and bone disorders. While arthritis can affect people of any age, is is more common as age progresses. Symptoms of arthritis can include stiffness, pain, and lack of mobility is the affects joints. One of the most common types of arthritis is osteoarthritis, in which the cartilage cushioning between bones in a join begins to wear away. Learn more about the different types of arthritis, arthritis symptoms, causes, and treatments in our educational articles below.