This deserved to be reblogged.
Almost 10% of the United States population is personality disordered, with Cluster B being the rarest (which surprised me).
It looks like Histrionic (Cluster B), Schizoid and Paranoid (Cluster A) and Dependent (Cluster C) are all slated to possibly be removed from the next edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM). That would leave only 6 personality disorders. I don’t think that’s enough. Schizoid Personality Disorder in particular doesn’t seem like it could be merged with anything else. Perhaps they’re planning on adding replacement categories.