Ernst Gräfenberg
German-born physician and medical researcher (1881–1957)
Ernst Gräfenberg
Ernst Gräfenberg (; German: [ˈɛʁnst ˈɡʁɛːfn̩bɛʁk]; 26 September 1881 – 28 October 1957) was a German-born physician and medical researcher. He developed the intrauterine device (IUD), and studied the role of the woman's urethra in orgasm. The G-spot is named after him.
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