2008-10-11, 04:52 PM
It's a Japanese folklore thing.
http://web.mit.edu/anime/www/culture-not...nosebleeds Wrote:The frequent nosebleeds (and subsequent embarassment) of male anime characters are related to a folk-belief that sexual excitement in men leads to a change in blood-pressure, which in turn can cause a nose-bleed. There's a subsidiary belief more profuse the flow, the greater the excitement.