CootieQueen answered Tuesday October 20 2009, 8:27 pm: Hello,
Well every body works differently. I'm no anatomy expert or.... expert about either one of the two issues you mentioned, but I did some quick research. Most girls on a regular menstruation cycle that masturbate have reported that their masturbation caused their perdios to come earlier then usual. So yes, masturbation CAN induce menstruation.
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