Yes, it is possible to be delusional without experiencing hallucinations and still be diagnosed with schizophrenia. Schizophrenia is a complex mental disorder characterized by a range of symptoms, including hallucinations, delusions, disorganized thinking and speech, and negative symptoms (e.g., reduced emotional expression or motivation).
Delusions are false beliefs that are not based in reality and are resistant to logical reasoning or evidence. They can be diverse and may involve paranoid, grandiose, or persecutory themes, among others. Hallucinations, on the other hand, are sensory experiences without an external stimulus, such as hearing voices when no one is speaking.
While hallucinations are a common symptom of schizophrenia, not everyone with this condition experiences them. Some individuals may primarily exhibit delusions and other symptoms without hallucinations. The diagnosis of schizophrenia is based on the presence of a constellation of symptoms over a specified period, as outlined in the diagnostic criteria of major psychiatric classification systems like the DSM-5 (Diagnostic and Statistical Manual of Mental Disorders, 5th edition) or the ICD-10 (International Classification of Diseases, 10th edition).
It's important to note that schizophrenia is a complex and multifaceted disorder, and its symptoms can vary significantly from person to person. If you or someone you know is experiencing any mental health concerns or symptoms, it's crucial to seek professional evaluation and assistance from a qualified mental health provider. Early diagnosis and intervention can significantly improve outcomes and quality of life for individuals living with schizophrenia or other mental health conditions.