How can a blind woman know when her period has ended?

She took medicine and did tawaf one day after her menses ended, then after doing ‘umrah she noticed a brownish discharge. Is her ‘umrah valid?

She emitted a brownish discharge during ‘umrah

If the bleeding lasts for more than fifteen days, it is clear that it is irregular bleeding (istihaadah) and she should make up the prayers of any days beyond the duration of her usual period

Does Spotting Count as a Period?

Return of yellowish discharge and very slight traces of blood after the end of menstrual bleeding

How to distinguish between yellowish discharge and ordinary secretions?

Her sign of purity comes and goes, and she gets a yellowish discharge on the eleventh day

Does a menstruating woman have to change her clothes once her period ends?

She gets brownish spotting before the bleeding starts