Serious disorders that cause leg pain include fibromyalgia and bone cancer, according to Mayo Clinic. Other conditions that cause leg pain include an Achilles tendon rupture, a broken bone, gout and deep vein thrombosis.
Pain in the leg joints is often symptomatic of arthritis, claims MedicineNet. Diabetic neuropathy commonly causes a tingling or numbness in the leg that can turn painful.
While leg pain is a symptom of a wide array of disorders, most leg pain simply results from overuse or injuries in joints, bones, muscles or other soft tissues, explains Mayo Clinic. Blood clots, varicose veins and general poor circulation can also cause leg pain in some people.