Are clotted brown discharges that appear after seeing white discharges and performing ghusl from menstruation considered menstruation? And what should be done regarding the prayers that were missed because of them?

If the "kudra" (brownish discharge) occurs during the period of menstruation, it is considered menstruation, and ghusl (ritual bath) is obligatory after its cessation. However, if it occurs outside the time of menstruation, it is not considered menstruation, and the prayers that were missed due to the assumption that it was menstruation must be made up.