JWs dont mix blood because the bible says not to mix blood.
Deuteronomy 12:23
Only be sure that you do not eat the blood, for the blood is the life, and you shall not eat the life with the flesh.
this is one of many passages that teach this.
I have read this interpretation before, and it always makes me wonder...
Would the people who don't believe in blood transfusions because of this passage then say that those who have been saved by them (such as some of people in this thread) should have just been allowed to die rather than be given a blood transfusion, because they believe that this would have been God's will--to just stand by and watch them die, when something could have obviously saved them?
I truly mean that as an honest question. For myself, I couldn't just stand by and let someone pass when all it would take to save them is something I apparently have a little extra of anyway.
I'm signed up for my next blood drive donation in about two weeks. The last two times I came close to passing out, but I find that a small price to pay in order to save another persons's life.