Paranoid schizophrenia is a subtype of schizophrenia, which is a chronic mental disorder characterized by a combination of symptoms that may include hallucinations, delusions, disorganized thinking or speech, emotional disturbances, and impaired social functioning. Paranoid schizophrenia is a type of schizophrenia with paranoia. Learn about the symptoms, causes, diagnosis, treatment, and complications of this condition. Paranoid schizophrenia is a subtype of schizophrenia. Schizophrenia is a disorder that affects your brain and behavior. It can mean you have trouble telling what is real and what is fantasy. The acts of making decisions and expressing or managing feelings can also be more difficult in people with schizophrenia. Paranoid schizophrenia is a subtype of schizophrenia characterized by delusions and hallucinations that blur reality. Learn about the signs, medication, and serious signs of this chronic disorder.