What triggers varicose veins? Varicose veins are principally a result of weakened or broken valves inside the veins, resulting in blood pooling and the veins starting to be swollen and twisted. Pregnancy: Elevated blood quantity all through pregnancy supports the growing little one but may enlarge the veins while in https://www.sgvascularctr.com/varicose-vein-treatment-in-singapore-everything-you-need-to-know/