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Is Donating Blood While Fasting Allowed?

15 April, 2022
Q As-salamu `alaykum. Can a person donate blood while fasting?


Wa `alaykum as-Salamu wa Rahmatullahi wa Barakatuh.

In the Name of Allah, Most Gracious, Most Merciful.

All praise and thanks are due to Allah, and peace and blessings be upon His Messenger.

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In this fatwa:

It is not recommended to donate blood while fasting unless there is an absolute necessity to do so.

In his response to the question, Sheikh Ahmad Kutty, a senior lecturer and Islamic scholar at the Islamic Institute of Toronto, Ontario, Canada, states:

It is not recommended to donate blood while fasting unless there is an absolute necessity to do so.

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Drawing lots of blood may make a person weak and thus he may be forced to break his fast. So, indulging in such an activity is not at all recommended as we are advised to keep our fasts intact as best as possible.

Moreover, there are scholars who are of the opinion that drawing lots of blood would invalidate one’s fast. This is the view of Imam Ahmad.

However, Imam Ash-Shafi`i and others are of the view that drawing of blood by itself does not break the fast, but one is not encouraged to do so as it may render a person weak.

The ruling, however, is different when faced with an emergency. Such is the case when one must donate blood to save a person’s life; in this case one must do so without any hesitation; it is better for him to break his fast if he has to than continuing his fast.

Another exception: If a person is exceptionally strong and is certain that donating blood would not render him weak at all, then there is no harm for him in donating blood, according to the view of Imam Ash-Shafi`i and others.

In conclusion, each person should consider his own state of health before embarking on this action.

Allah Almighty knows best.

Editor’s note: This fatwa is from Ask the Scholar’s archive and was originally published at an earlier date.