Basic Facts

  • The body’s network of veins, the blood vessels that return blood low in oxygen to the heart, is referred to as the venous system. 
  • Venous disease, or problems with the body’s veins, can change the appearance of the skin on a person’s arms or legs and can also cause sores, limb discomfort and swelling. Serious forms of venous disease can cause blood clots that can block blood flow. 
  • Common types of venous disease include varicose veins, phlebitis, chronic venous insufficiency and deep vein thrombosis.