What happens if a JW gets blood?
A baptized Witness who unrepentantly accepts a blood transfusion is deemed to have disassociated himself from the group by abandoning its doctrines and is subsequently subject to organized shunning by other members.
Jehovah's Witnesses believe that it is against God's will to receive blood and, therefore, they refuse blood transfusions, often even if it is their own blood. The willing acceptance of blood transfusions by Jehovah's Witnesses has in some cases led to expulsion from and ostracisation by their religious community.
Jehovahs Witnesses and Blood Transfusion Jehovah's Witnesses believe that the Bible (Genesis 9:4, Leviticus 17:10, and Acts 15:29) prohibits ingesting blood and that Christians should therefore not accept blood transfusions or donate or store their own blood for transfusion.
A small group of people belonging to a certain religion, called Jehovah's witness do not accept blood transfusion or blood products, based on biblical readings.