Varicose veins are veins that are becoming enlarged. Rather than remaining pumped easily in the veins, blood tends to pool in varicose veins, earning them bulge out and surface gnarled. Blood clot. Occasionally a clot can form inside of a hemorrhoid. This is called a thrombosed hemorrhoid. Whilst not perilous, https://www.sgvascularctr.com/varicose-vein-treatment-in-singapore-from-the-perspective-of-a-vascular-surgeon/