Fasting: Does Bleeding in the Mouth Break the Fast?
Practical Laws of Islam as per the teachings of Imam Khamenei
Fasting: Does Bleeding in the Mouth Break the Fast?
English:
Question #755:
If a person who is fasting bleeds in the mouth, does it invalidate his fast?
Answer #755:
Bleeding in the mouth does not void a fast. However, it is obligatory to prevent blood from reaching the throat.
-Imam Khamenei, Practical Laws of Islam, Importance and Conditions of Fasting