| In healthy veins,
blood travels in one direction only, towards the heart.
In contrast, varicose veins are abnormal or damaged veins
that have lost their ability to efficiently return the
deoxygenated blood back to the heart. Blood leaks back
through weakened valves and pools in the vein, distending
and twisting the vein. This condition is called venous
reflux and is often the underlying cause of varicose veins.
Any of the vein types may become varicose. There are multiple
causes of varicose veins, and treatments differ by cause
and severity of symptoms. |
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