Když byl Gräfenberg později pronásledován nacistickým režimem, pomáhala mu Margaret Sanger emigrovat do USA, kde si založil úspěšnou soukromou ordinaci a později proslul coby objevitel Gräfenbergova bodu (G-bodu).
When Gräfenberg was later persecuted by the Nazi régime, Margaret Sanger helped him to escape to the US where he had a successful private practice and eventually also became known as the discoverer of the Gräfenberg spot (G-spot).