The musculoskeletal system comprises bones, muscles, joints, ligaments, and tendons. Any of these components can be injured by trauma or affected by a number of diseases.

Common symptoms of musculoskeletal disorders include: pain, weakness, stiffness, joint noises, and decreased range of motion.
When Inflammation affects a joint, fluid may accumulate inside the joint causing swelling.

Inflammation can cause pain, swelling, warmth, tenderness, impaired function, and sometimes redness and can result from many different musculoskeletal disorders, including autoimmune deficiencies and infections.

Pain is usually best relieved by treating its cause. A physician may recommend analgesics, anti-inflammatory drugs, or depending on the severity of the pain, opioids.

There are different diagnostic tests available in diagnosing musculoskeletal disorders.