Is the blood that comes after it stops, then returns in the form of brown and yellow streaks after a miscarriage of a deceased fetus in the fifth month considered postpartum bleeding (nifas) or irregular bleeding (istihadah), and what should be done about it?

The blood of a woman who miscarried in her fifth month is considered nifas (definition) (postnatal bleeding). If it stops and then returns within the forty-day period, it is also nifas. Anything beyond forty days is considered istihada (irregular vaginal bleeding).