Leg cramps are sudden and painful involuntary contractions of the leg muscles. They are considered harmless except for the minor inconvenience but it can also be a sign of a more serious circulatory disorder. The cramping may involve part or the entire leg muscles. While upper leg cramps can occur in all individuals, the frequency tends to be more with increasing age. Medical conditions like Chronic Venous Insufficiency (CVI) has been identified as one of the lead causes of leg cramps. Other known causes of cramping include arterial dysfunction, nerve compression, and mineral depletion. Treatments for leg cramps are mostly conservative. A board certified professional will show you several stretching exercises that will reduce your night time cramping. Heat or cold treatment can also lower the discomfort from a cramp. If the cramping affects your sleep, your doctor may prescribe muscle relaxant or perform further test. You will find specialized physicians to handle your cramping at the vein treatment clinic website.