• blood
  • When these valves do not function properly, blood pools inside the vein rather than being transported up the legs to the heart. (cfvein.com)
  • Pooling blood causes the vein to expand and turn dark red, blue, or purple, forming a varicose vein. (cfvein.com)
  • appearance
  • If you suffer from varicose veins, there are a variety of non-invasive vein therapy options available to eliminate them and restore your confidence in the appearance of your legs. (cfvein.com)
  • active
  • Being overweight and minimally-active puts excess strain on your cardiovascular system, affecting the veins and their valves. (cfvein.com)