A fundamental doctrine of the Jehovah’s Witnesses teaches that the Bible prohibits consumption, storage and transfusion of blood, including in cases of emergency. This doctrine was introduced in 1945, and has been elaborated upon since then. Although accepted by a majority of Jehovah’s Witnesses, evidence indicates a minority does not wholly endorse this doctrine. Facets of the doctrine have drawn praise and criticism from both members of the medical community and Jehovah’s Witnesses alike.
In 1964, Jehovah’s Witnesses were prohibited from obtaining transfusions for pets, from using fertilizer containing blood, and were even encouraged to write to dog food manufacturers to verify that their products were blood-free. Later that year, Jehovah’s Witnesses doctors and nurses were instructed to withhold blood transfusions from fellow Jehovah’s Witnesses. As to administering transfusions to non-members, The Watchtower stated that such a decision is “left to the Christian doctor’s own conscience.†--
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