Chronic Venous Disease (CVD) occurs after years of venous disease or abnormality. This typically occurs in lower limb veins. CVD can either occur after years of untreated venous insufficiency or reflux or as a result of obstruction or chronic venous scarring from an untreated deep vein thrombosis (DVT).
An ultrasound scan of the affected area can detect reflux (backward flow of blood) or obstruction usually from chronic venous scarring.
Most vein diseases are not considered to be life-threatening and a variety of techniques may be used to pooling of blood or chronic venous hypertension.