Editing Menstruation (section)

=== Sexual activity ===
{{Further|Culture and menstruation}}
Sexual feelings and behaviors change during the menstrual cycle. Before and during ovulation, high levels of estrogen and [[androgen]]s result in women having a relatively increased interest in sexual activity, and relatively lower interest directly prior to and during menstruation.<ref>{{cite book| vauthors = Levay S, Baldwin J, Baldwin J |title=Discovering Human Sexuality |publisher=Sinauer Associates, Inc. |year=2015 |isbn=9781605352756 | location = Massachusetts |pages=44 |chapter=Women's Bodies|name-list-style=vanc}}</ref> Unlike other mammals, women may show interest in sexual activity across all days of the menstrual cycle, regardless of fertility.<ref>{{cite book| vauthors = Thornhill R, Gangestad SW |title=The Evolutionary Biology of Human Female Sexuality|publisher=Oxford University Press|year=2008|isbn=9780195340990|location=New York|pages=12|chapter=Background and Overview of the Book|name-list-style=vanc}}</ref>

There is no reliable scientific evidence that would advise against [[sexual intercourse]] during menstruation based on medical grounds.{{medical citation needed|date=February 2021}}