Arthritis is a common disease that causes joint pain, stiffness, immobility, and swelling. Arthritis is actually a term for a group of over 100 diseases that affect the muscle and skeletal system, particularly the joints. Arthritis alters the cartilage in joints. Cartilage is a very tough, shock absorbing material that covers the ends of many of our bones. The cartilage forms a smooth surface and allows the bones in our joints to glide easily during motion. Arthritis can cause the cartilage to wear away. Loss of the protective lining can cause painful bone on bone rubbing. Arthritis can be quite painful and disabling. While this may be tolerated with medications, therapy, other modalities, and lifestyle adjustments.