If this sign has appeared for a
Why Veins Become Noticeable Veins carry blood back to the heart. They’re usually smooth and just under the skin, but thin skin, dehydration, or weight loss can make them stand out. Sudden bulging or rope-like veins, however, may signal a health issue. Possible Health Concerns Varicose veins: Failed valves let blood pool, stretching veins. Venous…