Skip to content 
Schizophrenia is a complex mental health disorder that affects a person’s ability to think clearly, manage emotions, make decisions, and relate to others. It is a severe condition with symptoms such as hallucinations, delusions, and cognitive impairments. However, it is not the only disorder with such symptoms.
There are several disorders similar to schizophrenia that you may want to learn about to understand your diagnosis and treatment options better. In our guide, we will list the most common mental health disorders that may be confused with schizophrenia, explain their symptoms, and highlight the differences between each disorder and schizophrenia.
Table of Contents
- Schizoaffective Disorder
- Schizophreniform Disorder
- Brief Psychotic Disorder
- Delusional Disorder
- Substance-Induced Psychotic Disorder
Lonestar Mental Health
Schizoaffective Disorder
Schizoaffective disorder is a mental health disorder that combines symptoms of schizophrenia (such as hallucinations or delusions) and mood disorder symptoms (such as depression or mania). Because of the presence of psychotic symptoms, schizoaffective disorder is often misdiagnosed as schizophrenia.
The main difference between schizoaffective disorder and schizophrenia is the presence of major mood episodes—depressive or manic—in addition to psychotic symptoms. While there is an overlap in symptoms, these two disorders have different diagnostic criteria.
Schizophreniform Disorder
Schizophreniform disorder is a mental illness with symptoms identical to schizophrenia—delusions, hallucinations, disorganized speech, and negative symptoms (lack of motivation, poor concentration, social withdrawal, etc.). Patients with schizophreniform disorder get better with or without treatment within a few months.
Individuals diagnosed with schizophrenia exhibit symptoms of this disorder for many months and even years, greatly struggling to live their lives without therapy and medication. On the other hand, schizophreniform disorder lasts one to six months.
Brief Psychotic Disorder
Brief psychotic disorder is an unexpected but temporary mental health issue characterized by psychosis. A person with this disorder may start believing things that are not true (have delusions) and see or hear things that do not exist (have hallucinations).
People diagnosed with brief psychotic disorder typically have a full recovery within a month after the symptoms are first noticed. This distinguishes brief psychotic disorder from schizophrenia—the latter may persist for many years, seriously disrupting the life of the individual affected by the disorder.
Lonestar Mental Health
Delusional Disorder
Delusional disorder is a mental illness that makes a person believe things that are not real. These beliefs are usually based on false or insufficient premises, yet the patient is convinced they are true despite the contradicting evidence.
Unlike schizophrenia, which comes with a wide array of symptoms—from chaotic movement to lack of pleasure in daily activities—delusional disorder affects the patient’s perception, putting them at risk of dangerous behavior, especially if they do not undergo treatment.
Substance-Induced Psychotic Disorder
Substance-induced psychotic disorder is a form of psychosis that develops after the use of drugs or alcohol. In many cases, this disorder occurs when a person is going through substance withdrawal.
The symptoms of substance-induced psychotic disorder and schizophrenia are similar—for instance, a person may hear voices that are not there and feel like they are being watched or followed. If you or someone you know has these symptoms after consuming drugs or alcohol, make sure to reach out to a healthcare provider.
Lonestar Mental Health
Frequently Asked Questions
What are the most common disorders similar to schizophrenia?
Some of the disorders that are often compared to schizophrenia are schizoaffective disorder, schizophreniform disorder, and brief psychotic disorder delusional disorder and substance-induced psychotic disorder.
What is the difference between schizoaffective disorder and schizophrenia?
While both disorders have psychotic symptoms, Schizoaffective disorder and schizophrenia are not the same—the former includes mood disorder symptoms (such as depression) in addition to psychosis.
What is schizophreniform disorder?
Schizophreniform disorder is a mental health disorder that mimics the symptoms of schizophrenia. However, it is a temporary illness that lasts a few months and resolves on its own or with treatment.
Is delusional disorder the same as schizophrenia?
Delusional disorder and schizophrenia are two separate diagnoses—the former mainly affects the perception of the patient, making them believe things that are not true.
What should you do if you have symptoms of schizophrenia?
If you or a person you care about has symptoms of schizophrenia or a similar disorder, you should consult with a doctor A medical professional will be able to provide an accurate diagnosis and develop a treatment plan suited for the patient.
Embrace Mental Wellness With Lonestar Mental Health
We hope that our guide has helped you learn more about disorders similar to schizophrenia and understand the symptoms and peculiarities of each disorder. If you or your loved one exhibits symptoms of schizophrenia or a comparable disorder, reach out to a medical professional—only a certified doctor will be able to diagnose the disorder and come up with a customized treatment plan that suits the patient.
Contact Lonestar Mental Health to talk to our mental health experts. Our team will be able to diagnose the disorder you or your family member is struggling with, provide you with therapy tailored to the needs of the patient, and support the patient and their loved ones on their journey to better mental health.
