The Bible tells us that God thinks that any discharge from the sex organs is unclean. Primitive man believed that when a woman had a menstrual cycle, she was getting rid of "bad blood." God apparently believed the same thing because, according to God's laws, a woman who was on her menstrual cycle was considered "unclean" for seven days. This uncleanliness was apparently contagious, since anyone who touched her while she was on her period was also considered unclean (Leviticus 15:19). In another passage, the Bible states that if a man has sex with a woman on her period, both he and the bed they did it on will be unclean (Leviticus 15:24). Later in the chapter this uncleanliness was considered to be so bad that the death penalty was demanded for any couple who had sexual intercourse while the woman was having her period (Leviticus 18:19, 20:18). Not only people, but things could catch this uncleanliness, including everything she layed on or sat on. And if anyone touched something which she layed or sat on, that person was also considered to be unclean (Leviticus 15:20-28). While she was unclean, the menstruating woman had to participate in purification rites, staying isolated and hidden, often outside the city or camp, until she had cleaned her menstrual rags. After the menstruating woman had completed her seven days of purification rites, she was required to bring two animals, one for a burnt offering and the other a sin offering, to the priest, to atone for her "sin" of uncleanliness. The New Testament also mentions how a woman with a twelve year long menstrual flow (probably as a result of venereal disease due to its description -see (Mark 5:26) was healed after she touched Jesus' garment (Matt. 9:20, Mark 5:25-29, Luke 8:43). It's amazing to think that any educated person would believe that the creator of all the universe would exhibit such ignorance concerning the natural reproductive function of the female body.