Jehovah Witnesses do not accept transfusions of blood due to their religious beliefs. They believe that the Bible prohibits the consumption or use of blood in any form. They interpret specific passages in the Bible as a commandment to abstain from blood, and therefore, they refuse blood transfusions even in life-threatening situations. Instead, they opt for alternative medical treatments that do not involve the use of blood products, such as cell salvage or the use of non-blood volume expanders.