Leviticus 15:23-25

New Living Translation

²³ This includes her bed or any other object she has sat on; you will be unclean until evening if you touch it. ²⁴ If a man has sexual intercourse with her and her blood touches him, her menstrual impurity will be transmitted to him. He will remain unclean for seven days, and any bed on which he lies will be unclean.

²⁵ “If a woman has a flow of blood for many days that is unrelated to her menstrual period, or if the blood continues beyond the normal period, she is ceremonially unclean. As during her menstrual period, the woman will be unclean as long as the discharge continues.