What is venous stasis dermatitis? Venous stasis dermatitis is dermatitis of the skin overlying inflamed vein cords which may or may not be visible by the naked eye. Congestion of major superficial veins like the great and lesser saphenous veins with old venous blood can cause venous stasis dermatitis. If you have a skin rash in your leg or legs, get evaluated by the premier vein center in Western New York. The Vein Treatment Center is here to help relieve stasis venous dermatitis with office bas