Koro, one of the least known culture-bound syndromes of Southeast Asia, is characterized by complaints of genital hyperinvolution and fear of impending death. Current medical and psychiatric literature describe the syndrome as endemic only among Chinese populations, especially in Southeast Asia. But the term and the syndrome were first introduced to Western science as a malady indigenous to southern Sulawesi, formerly known as Celebes, an island of Indonesia (Blonk 1895). Blonk’s short report rapidly engendered a psychodynamic analysis (Brero 1896a, 1896b) and a second case report (Vorstman 1897), but koro received no further attention until the 1930’s, when another brief spate of articles appeared (Slot 1935; Mulder 1935; Wulfften Palthe 1934,1935a, 1935b, 1936,1937). Since then, koro rarely has been noted among the non-Chinese peoples of Southeast Asia.