Will Bleeding Gums Nullify the Fast?

Q: Saum-7: Will it be necessary to repeat the fast to pay Kaffaarah if the gums bleed during the fast and blood trickles down the throat?

Answer: If the blood is less than the saliva when spitting, the fast will not be nullified. The fast will be nullified if the blood can be tasted in the throat as Well as if it is more than or equal to the amount of saliva. It is necessary only to repeat the fast (Kaffaara is not necessary).l And Allaah knows best what is most correct.

Fatawa Rahimiyyah vol.3