Does kidney dialysis break the fast during the day in Ramadan?
Hemodialysis involves drawing the patient's blood, purifying it with a machine, adding chemical and nutritional substances to it, and then returning it to the body. Therefore, this dialysis invalidates the fast. If a patient needs it during the day in Ramadan, they should break their fast and then make up for it, in accordance with the Almighty's words: "But whoever is ill or on a journey, then [let him fast] a number of other days."
Summarized from the full answer at Ftawy · reviewed Sep 2, 2026
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