Paranoid Personality Disorder is a mental disorder recognized by the World Health Organization and involves extreme distrust and suspicion of other people over a long period of time.
The disorder is associated with extreme suspicion and distrust, causing the patient to move into a state of schizoid isolation. These people may also have a tendency to see seemingly insignificant events as conspiracies devised by people around them to harm them. This paranoia can even help them suspect close relations and family which can have an adverse impact on their personal relations.
