Childhood abuse and trauma has been known to be the root cause of several psychosomatic disorders. Multiple Personality Disorder (MPD), also known as Dissociative Identity Disorder (DID) or split personality disorder, has its origins in disturbing childhoods and perturbing upbringings. There are cases where people are said to have three or even 100 separate personalities. Much research and discussion have taken place over MPD. Let us find out the 10 most shocking cases of split personality disorder.