Reference: Fataawa al-Lajnah ad-Daa.imah lil-Buhooth al-‘Ilmiyyah wal-Iftaa. – Fatwa No.1730
Fataawa Ramadhaan – Volume 2, Page 463, Fatwa No.397
Question: The questioner says he was fasting in Ramadhaan and when he touched his nose some drops of blood flowed out without intention. Does this affect my fast?
Is my fast that day valid or do I have to repeat it?
Response: If the situation is as you state, then your fast is valid and there is no need for you to repeat it. This does not affect your fast, Allaah-Willing.
And with Allaah lies all the success, and may Allaah send prayers and salutations upon our Prophet Muhammad (sal-Allaahu ‘alayhi wa sallam) and his family and his companions.