Does the ablution of a person whose gingiva/gum bleeds become nullified?
According to Hanafis, the blood that comes from a wound and flows invalidates minor ablution. And the blood coming from gingiva/gum invalidates ablution when it is half or more of saliva (Mawsili, al-Ikhtiyar, I, 52). According to Shafi’is, the ablution is invalidated only by the things coming from front or back private parts of people. The fluids coming from other parts of body do not invalidate ablution. Therefore, according to Shafi’is, one’s ablution is not invalidated by bleeding of the gingiva (Mawardi, al-Hawi, I, 199-200).
Source: Presidency Of Religious Affairs The Turkey, High Board of Religious Affairs FATWAS