What is the ruling on swallowing phlegm while fasting, with a definition of phlegm?
Source: FtawySummary from Ftawy's records · added here Sep 2, 2026
Phlegm is one of the body's humors. Swallowing it after it reaches the mouth is a matter of scholarly disagreement. Sheikh Al-Uthaymeen favored that swallowing it does not invalidate the fast, because the default is that an act of worship is not invalidated. The important thing is that a person should not draw the phlegm from his throat; rather, he should expel it once it reaches the mouth. However, to be on the safe side, it is better to avoid it, as a way of exiting the disagreement.
Summary from Ftawy's records · added here
Reviewed by El Fatwa's sharia committee.
Read the full answer on Ftawyhttps://ftawy.com/en/questions/110902
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- Ftawy
- Original fatwa ID
- 110902
- Added here
- . This is when the answer was added to El Fatwa, not the fatwa's date.
- Text
- Summary from Ftawy's records, reviewed by El Fatwa's sharia committee.
- Read the full ruling
- Read the full answer on Ftawy