Do you have a job that requires you to stand or sit for long periods of time? Are you planning any long-distance air travel? Standing or sitting for extended periods can lead to swollen legs, varicose veins, or deep vein thrombosis (DVT) (a blood clot) which is a serious medical condition. If you have diabetes or heart disease, you may also have venous circulation issues. Medical compression can prevent these problems. By applying controlled, graduated pressure, the venous pressure is reduced, which results in less swelling in the legs. Medical compression, like socks and stockings, come in a variety of sizes and colours.