There are risks in ANY medical procedure whether blood is used or not.
As has been said- If the use of Blood Transfusions was as dangerous and risky as the JW's want people to believe. Then why are they still performed? Why the constant call for blood donors?
What JW's don't like is that through the years they have been proved wrong about their stand on blood.
Now even the are gradually whittling away at what is or not allowed. When I became a JW in early 70's absolutely nothing of blood was allowed. If it came from or made from blood it was forbidden.
Now we see that they allowed fractions of this and that blood component.
I wonder what those who lost loved ones because of not being allowed a certain fraction/compnent now feel.
Very similar to the organ transplant situation, I should think.
Can you imagine being in a Kingdom Hall and hearing that Brother X's child had a successful operation because he was allowed a certain blood fraction. When years before your child died because you were told NO BLOOD of any kind allowed.
The JW's use the risk of Blood transfusions far more than the scriptural reasons, to frighten people.
How would they fair if blood transfusion was the most safest medical treatment you could have.
How would their scriptural basis hold up then?