Although the syndrome of Multiple Personality Disorder (MPD) has recei
ved much interest in the international literature, there have been vir
tually no professional articles on the topic in German over the last 7
0 years. This is a report on two cases with nine and 70 persons respec
tively. Both had undergone severe and prolonged sexual abuse in childh
ood. Compared with DSM-III-R, the ICD-10 criteria seem to reflect hist
oric reports on alternating personalities rather than recent empirical
research on multiple personality. The proposed etiological model post
ulates that extreme trauma in childhood can result in dissociative vul
nerability persisting into adulthood.