Cardiology Questions Answered by Verified Cardiologists.
Hi and thanks for the query.
No, a bulging vein is not a sign of a blood clot.
Blood clots in the deep veins or deep venous thrombosis, presents with pain in the calf, swelling and discoloration.
Bulging veins on the dorsum (top) of the foot are typically present in everyone.
Let me know if you have further questions.
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