24If a man lies with her and her menstrual flow touches him, he will be unclean for seven days, and any bed on which he lies will become unclean.
25When a woman has a discharge of her blood for many days at a time other than her menstrual period, or if it continues beyond her period, she will be unclean all the days of her unclean discharge, just as she is during the days of her menstruation.
— Leviticus 15:24-25