These visible veins outcome from weakened valves that malfunction, making it possible for blood to circulation backward and pool within the veins. This congestion causes twisting and lengthening on the impacted veins, frequently resulting in distress and agony. Transcranial Doppler ultrasound. Works by using sound waves to ascertain the speed https://www.sgvascularctr.com/understanding-venous-malformation-treatments-in-singapore/