Pain may affect all or part of a leg or arm. Most disorders that cause limb pain affects the legs more commonly. Limb pain may be constant or occur irregularly. Pain may be precipitated by motion or have no relation to movement. Other symptoms, such as warmth, redness, numbness, or tingling, may also be present, depending on the cause of the limb pain.
Injuries and overuse are the most common causes of pain in a limb, but people usually know the cause of these injuries. Other causes include blood clots in deep-lying veins, a bacterial infection of the skin, and pressure on a spinal nerve root.