What is the ruling on Tawaf Al-Ifadah for a woman who saw intermittent bloody discharge during the days of Hajj after taking medication to delay her period, and then her usual menstrual blood descended later?

Scholars have differed regarding the minimum duration of menstruation. The majority of them hold that it is one day and one night, while the Malikis believe that a single gush of blood constitutes menstruation. If a woman sees blood for one day and then purity for one day, and the period of purity is less than fifteen days (or thirteen days, according to another opinion), the blood is added to the blood, and all of it is considered menstruation. The period of purity in between is when acts of worship are permissible after ghusl (ritual bath).

Some scholars are of the opinion that intermittent bleeding is not aggregated unless it was preceded by continuous, valid menstruation for one day or more.

Therefore, it would be more cautious for your wife to follow the Maliki school or those who aggregate intermittent bleeding. If she performed tawaf under these circumstances, she may consider it sufficient, following those who do not consider this amount of blood as menstruation. However, the preferable and more cautious approach is for her to repeat the tawaf if it does not cause her undue hardship.