Night cramps can be caused by venous reflux or varicose vein. What is venous reflux? To keep blood moving against gravity toward the heart, leg veins have one way flow valves. However, if those valves do not function properly, blood may flow backwards, or reflux, down the leg. When you get a night cramps, walk it out. If the cramps improve with walking, they may be caused by venous reflux or varicose veins.
July 26, 2012