See a doctor if: They’re accompanied by pain, swelling, or skin changes.
Superficial Thrombophlebitis
Inflammation of a vein just under the skin, often with a visible red, tender cord. Can be caused by injury, IV lines, or clotting disorders.
See a doctor if: You have a tender, red cord-like vein, especially if accompanied by fever or if it’s in multiple places.
Deep Vein Thrombosis (DVT)
A blood clot in a deep vein, usually in the leg. This is a medical emergency. Symptoms include:
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Swelling in one leg
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Pain or tenderness (often described as cramping)
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Warmth over the affected area
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Red or discolored skin
Seek emergency care immediately if you suspect DVT. If the clot travels to the lungs (pulmonary embolism), it can be fatal.
What to Expect at the Doctor
If you’re concerned about visible veins, your doctor may:
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Take a medical history – Ask about symptoms, risk factors, and family history
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Perform a physical exam – Look at the veins, check for swelling, tenderness, or skin changes
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Order an ultrasound – Non-invasive test to check blood flow and rule out clots
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Recommend treatment – Compression stockings, lifestyle changes, or procedures if needed