To compensate, the researchers, led by Michael Jennions of Australian National University, showed 105 young Australian women life-size computer-generated figures of nude men, varying the figures' flaccid penis size, height and shoulder-to-hip ratio. And in other studies, scientists have asked women to judge the attractiveness of male figures in photos with only penis size varied, when in fact no trait is ever evaluated in a vacuum, the scientists added. Men typically fret more about size than women, however, at least according to a 2007 review article in the British Journal of Urology International.īut studies have relied on questionnaires, which may not always glean honest answers, Australian researchers wrote today (April 8) in the journal Proceedings of the National Academy of Sciences.

Studies on women's preferences for penis size have been mixed, with some suggesting that women who frequently orgasm through vaginal stimulation are the pickiest, perhaps because penis size matters for that sort of stimulation.