[Stu from NYC]

Originally Posted by Keefelane66

It's called menstruation or period.
Menstruation, or period, is normal vaginal bleeding that occurs as part of a woman's monthly cycle. Every month, a female prepares for pregnancy. If no pregnancy occurs, the uterus, or womb, sheds its lining. The menstrual blood is partly blood and partly tissue from inside the uterus.

Thank you for the info but what is the point of putting sanitary napkins in the boys bathroom? Teach this in sex ed when the teenagers are old enough to understand or parents says ok.