Arthritis refers to inflammation of one or more joints, degenerative osteoarthritis being the most common form. It is progressive degeneration from wear and tear of the joints, resulting in the breakdown of cartilage (natural joint lubricant) and joint surfaces. These processes result in structural changes of the affected joints (such as bone spurs) that can usually be seen on X-rays.

Arthritis may be the result of normal wear and tear on the joints, or perhaps due to the previous injury in the affected area. Joints in the hand, particular the fingers, are commonly affected, as well as joints of the lumbar spine, hips, knees and feet.

The degenerative process itself may not be painful, however the resulting inflammation and irritation to surrounding muscles, ligaments and tendons usually cause one to experience uncomfortable and sometimes debilitating symptoms.