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Vascular Surgery

Numerous blood draws for clinical research



I am considering taking part in a clinical drug research trial. My blood will be drawn 51 times over the course of 6 weeks - sometimes as much as 9 times a day. Is this dangerous for the future health of my veins?


This does not impart any danger to you or your veins but can occasionally cause scarring. I would recommend they draw from different veins over the course of the study so as to not cause scarring.

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Response by:

Amy B Reed, MD Amy B Reed, MD
No longer associated