Can blood transfusion or giving blood invalidate fasting? The Grand Ayatollah Safi’s answer


The Grand Ayatollah Safi answered questions about blood transfusion and giving blood.

Question: Can blood transfusion (injecting blood to a fasting person) invalidate fasting?

The Grand Ayatollah Safi: It does not invalidate the fast.

Question: What is the ruling if in the holy Month of Ramadhan 5 CC of blood is taken (from a fasting person) for test?

The Grand Ayatollah Safi: There is no problem, but if it causes weakness it is Makrooh.


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