The cases in which menstruation (hayz) and postpartum bleeding (nifas) habits remain stable, the situations in which they change, and how the habit shifts in terms of the position of days and number are explained within the framework of Hanafi jurisprudence.

Istihaza is a juristic term used for bleedings outside of menstruation. In Hanafi fiqh, the criteria for determining istihaza, the rulings of bleeding that exceeds the menstrual period, and its effects on daily acts of worship are explained in a clear, systematic, and understandable way in this article.