Does frequent blood/platelet donation harm your veins?

Does frequent blood/platelet donation harm your veins?
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answer:No, because you’re not putting anything other than blood and saline back in. From what I understand, it’s pushing something into your vein that is not normally full strength in the blood stream. A friend has been getting a “Myer’s Push” which is a ******** of B vitamins and some other mineral supplements, as part of her recovery from cancer treatments. It is administered via IV, and it has “worn out” her vein. That’s because of the strength of the ******** interacting with the walls of the vein.
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