Arthritis is inflammation of one or more joints. There are over 100 different types of arthritis.
Arthritis causes joint pain, swelling, stiffness, and limited movement.
Arthritis involves the breakdown of cartilage. Cartilage normally protects a joint, allowing it to move smoothly. Cartilage also absorbs shock when pressure is placed on the joint, such as when you walk. Without the normal amount of cartilage, the bones rub together, causing pain, swelling (inflammation), and stiffness.
Relief to the pain caused by arthritis can be helped by taking a pain pill.