Superficial thrombophlebitis and deep vein thrombosis (clots) are another potential complication.
Varicose veins are prone to developing superficial thrombophlebitis (SVT) as well as deep vein thrombosis (DVT). SVT is characterized by redness of the skin, tenderness, and pain along the affected superficial vein just below the skin surface. As opposed to deep veins, clots in the superficial veins are less severe and generally do not break off and go to the lungs.
Deep Vein Thrombosis or DVT on the other hand is a more severe condition. The vein in the leg still becomes inflamed and forms a clot. However, a DVT has the potential to cause a “pulmonary embolism” – a potentially life threatening condition – if the clot breaks loose and travels to the right side of the heart and eventually migrates to the lungs.