If the duration of menstruation is 7 days, and it increases beyond that to 15 days, does she perform the full ritual bath and pray after the seventh day?

Question:
He says: Honorable Shaykh, may Allah grant you success, if a woman’s monthly period is seven days, and it increases beyond that to fifteen days, does she perform the full ritual bath and pray after the seventh day, or not?

Answer:
No. The custom increases and decreases up to the limit of fifteen. It may increase to fifteen or decrease to the limit of a day and a night. The custom is not constant; it may increase, it may decrease, it may be delayed, and it may come early. As long as she has consistent blood, which is menstrual blood, she continues until fifteen days. Yes.