Visible blue veins on your hands are usually normal, caused by thin skin, low body fat, pregnancy, or activity. They’re often just a sign of good circulation. Trouble arises when veins bulge, twist, feel warm, or appear red and swollen—possible signs of varicose veins or blood clots. Staying active and monitoring changes is key, and any sudden or painful symptoms should prompt medical attention.
If you see someone with bulging veins, you must tell them these things
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