Varicose Veins: Causes, Symptoms and Treatment - Cleveland Clinic
https://my.clevelandclinic.org/health/diseases/4722-varicose-veins
WebVaricose veins are swollen blood vessels that appear just under your skin’s surface in your lower body. When your vein walls are weak and your valves aren’t working right, blood backs up in your vein. This causes the blue and purple bulges you see on your legs, feet or ankles. Several treatment options can work, but varicose veins can return.
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