What is the ruling when a fasting person suffers from nosebleeds during the daytime in Ramadan for 28 days, and the blood goes down to the throat and is then swallowed?

If nose bleeding occurs involuntarily while fasting, the fast remains valid. This is because the evidence from Islamic law indicates its ease and the removal of hardship, as Allah says: (Allah does not burden a soul beyond its capacity) and His saying: (Allah does not intend to make any difficulty for you).