The weakened valves let blood pool in the veins as opposed to traveling to the guts. When blood pools within the veins, the veins turn into bigger, building them show underneath the pores and skin. How many times the needle is accustomed to put solution right into a vein depends https://www.sgvascularctr.com/varicose-vein-treatment-in-singapore-from-the-perspective-of-a-vascular-surgeon/