symptoms of musculoskeletal disorders
bone, joint, and muscle disorders
Joint Pain: Single Joint
Pain that is isolated to just one joint is called monoarticular joint pain. A joint may simply be painful (arthralgia) or may also be inflamed (arthritis). Pain in a single joint may be caused by arthritis. Arthritis usually also causes warmth and swelling, and rarely redness of the overlying skin. Pain may occur only when the joint is moved or also be present at rest. Fluid may collect within the joint (called an effusion). Pain that seems to be coming from a joint sometimes originates in a structure outside of the joint, such as a ligament, tendon, or muscle (see Introduction to the Biology of the Musculoskeletal System ). Examples of such disorders are 