Can someone explain nose bleeding and wudhu breaking because of it?
If the blood flows from the nose, then it will invalidate the Wudhu.
If, however, the blood stayed at the place of exit and did not flow to other parts of the face that are to be washed, then the Wudhu would not break.
Similarly, if one washes the nose and then blood flows out because of washing, then that will invalidate the Wudhu. Except when it comes out as a crusted clot, then that will not invalidate the Wudhu.
And Allah Ta’āla Knows Best
Mufti Faisal al-Mahmudi