The Difference Between Menstruation and Irregular Non-Menstrual Bleeding

Question:
She asks: What is the difference between menstruation and irregular non-menstrual bleeding?

Answer:
Menstruation is the known custom; it is blood of a natural, dark nature that comes from the bottom of the womb at known times. As for irregular non-menstrual bleeding, it is bleeding, not menstruation; it is bleeding resulting from an illness. Menstruation prevents prayer and prevents fasting. As for irregular non-menstrual bleeding, it does not prevent prayer and does not prevent fasting. Rather, it is obligatory for the woman with irregular non-menstrual bleeding to pray and to fast. Yes.