Varicose veins are veins that have grown to be enlarged. Rather then being pumped efficiently through the veins, blood has a tendency to pool in varicose veins, generating them bulge out and appear gnarled. Blood clot. From time to time a clot can form within a hemorrhoid. This known as https://www.sgvascularctr.com/varicose-vein-treatment-in-singapore-from-the-perspective-of-a-vascular-surgeon/