August 5, 2010 11:02 AM Subscribe
What is the best and worst time of the month for women to donate blood?
posted by raztaj to Health & Fitness (10 answers total) 1 user marked this as a favorite
Today was my 4th time attempting to donate blood, and my hemoglobin was too low. I've never had a problem with my iron levels the other 3 times, but today it was 11.1 (!) on the first prick, and 12.0 on the second prick. That variation seems pretty big to me, but still not high enough to donate (I've previously been in the high 12s and low 13s).
It had me puzzled why my hemoglobin is so low, because there haven't been any changes in my health or diet since other donations. However, I'm due to get my period in less than a week, so I guess that explains it.
For a woman on a 28-day cycle, what is the best and worst time to donate blood, and to guarantee being on an iron upswing? Is the best time just after your period? Is the worst time during your period, or just before it?