The term Arthritis covers a wide range of diseases that can cause painful inflammation and damage to joints in the body. In some cases, it can be limited to only one area of the body while in others it can affect all of the joints in the body to varying degrees. Osteoarthritis, which is the form of arthritis that is caused when a joint is physically damaged, worn by age or damaged by infection. This is the most common type of arthritis that affects people that are older and have had a ...