What Causes Varicose Veins?
- Jeffrey H. Miller, M.D.

- Aug 2
- 1 min read
Updated: Aug 12
People ask Dr. Miller all the time, what causes varicose veins?
So, What Really Causes Varicose Veins?
In the simplest terms, varicose veins are caused by a combination of two things:
Gravity
Weak veins
Normally, our veins carry blood from our legs up to our heart. When a vein is weak, blood is allowed to go the wrong direction.
That puts pressure on branches that come off veins that we can't see. And those branches pop out and become varicose veins.
If you want more detailed information, visit our dedicated varicose veins page.
Stop Letting Your Legs Hold You Back
If you have restlessness, heaviness, aching, swelling, throbbing, or itchiness in your legs—or you notice varicose veins or spider veins—it's time to see a vein specialist.
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