Why do varicose veins occur?

Question: Why do varicose veins occur? Cello (Sant Fost de Campsentelles).

Answer: When for various reasons it is impossible for the organism to make the blood flow back to the heart, it stagnates, and in order for it to have a place, the vessel (vein) dilates. At first, if the venous return is favored, said dilation disappears and the vein returns to its normal situation. But if this venous return difficulty lasts too long, the vein dilates permanently.

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