This indicates the age at which a woman typically becomes post-menopausal. If a woman has her first menstruation, and her blood lasts for three months without knowing the days of her periods, her periods will be like those of her female relatives. If her female relatives have varying durations, her maximum time for sitting (during her period) is ten days. The term 'Iqrah' refers to the gathering of blood between menstruation periods and purity, as a woman collects blood during her menstruation days and then expels it during her period. A woman who becomes pure from her menstruation at the time of 'Asr (afternoon prayer) does not have to pray the Dhuhr (noon prayer) but only prays the prayer during which She becomes pure. If She sees purity during a prayer time and delays ghusl until the time of another prayer enters, if She was negligent in her duties, She must make up that prayer. If She was not negligent and was merely preparing for the ghusl until another prayer time entered, She does not have to make up the missed prayer; She simply prays the one for which the time has come. If a woman prays two rak'ahs of Dhuhr and then sees blood while sitting, She does not have to make up the two rak'ahs when She becomes pure. If She is in the Maghrib prayer and has prayed two rak'ahs, She should get up from her place and make up the remaining rak'ah if She becomes pure. If She is in prayer and suspects that She has started her menstruation, She can touch the area and check. If She sees blood, She should stop her prayer; if She does not see anything, She can complete her prayer.