The psychiatric diagnosis of at least four of the following required.

A, Proper factual context assumes no basis to take advantage of others, or hurt him. In the absence of evidence is questioning his friends, reliability and loyalty of staff. Generally innocent remark or from everyday happenings from a hidden malice or threat reads (eg .: the belief that the bank used "mistake" could only come from intentional) Hold a grudge for a long time unable to forgive and forget the injuries he suffered, headaches. Not willing to trust others because they are afraid that the information derived from it is used against him later. Easily offended, offended immediately respond in case of an angry attack. Real reasons for the absence of a spouse or sexual partner of questioning his loyalty. B, A list of character traits not only schizophrenia or delusional disorder at the time of existence appear.