The Difference Between Menstrual Blood and Irregular Non-Menstrual Bleeding

Question:
May Allah reward you. The sister questioner asks, Honorable Shaykh, about the difference between menstrual blood and irregular non-menstrual bleeding, and whether a woman prays and fasts in both cases?

Answer:
Menstrual blood is blood of nature and constitution that comes out of a woman on known days and at a known time. As for irregular non-menstrual bleeding, it is bleeding that is not menstruation, and it does not come out on known days. She prays during the days of irregular non-menstrual bleeding; she does not leave off the prayer. As for the days of menstruation, she leaves off the prayer, and it is not permissible for her to pray on the days of menstruation. Yes.