Shared delusional disorder, also called folie à deux, is a mental health condition that has puzzled people for centuries. This rare mental illness occurs when two or more people share the same delusion. Understanding the causes and symptoms of shared delusional disorder is crucial for spotting this condition and helping the affected person.
While shared delusional disorder is not a common illness, it may lead to tragic consequences if left untreated. In our guide, we will review the history of Folie à Deux, the signs of this disorder, and the best treatment options for Shared Delusional Disorder.
What Is Shared Delusional Disorder?
Shared delusional disorder is a psychiatric syndrome first described in 19th-century France by Charles Lasègue and Jules Falret. The name of the disorder—Folie à Deux—is translated as “madness for two,” since this condition usually develops in two people who have a close relationship.
In simple terms, shared delusional disorder means a person adopts a false belief from another individual, even though this delusion has no logic behind it. For instance, two people may be convinced the government is spying on them, so they decide to relocate and live off the grid to protect their privacy.
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Symptoms of Shared Delusional Disorder
Here are the most common signs of shared delusional disorder you need to watch out for:
- Believing in false ideas. A delusion is a belief or perception that is not based on reality—a person may think they are being followed or poisoned with no factual basis for such a claim.
- Withdrawing from friends and family. Often, people who suffer from mental health issues choose to isolate themselves from those who care about them, preferring to spend time only with the individual who shares their delusions.
- Showing behavior changes. If a previously calm and collected person starts to act irrationally and makes decisions that endanger their well-being, their mental state may have been compromised.
Causes of Shared Delusional Disorder
At the moment, mental health professionals cannot pinpoint a single reason behind Shared Delusional Disorder. Nevertheless, several factors may contribute to the development of this condition:
- A close bond with a person who suffers from delusions. If your friend or family member has been diagnosed with a mental health disorder, you may be negatively influenced by them, especially if you spend a lot of time together.
- Stressful life events. Sometimes, major changes in a person’s life—death of a loved one, divorce, or loss of employment—provoke abnormal behavior.
- Lack of socialization. When a person does not have many people to talk to and rely on, they may believe and support the only individual that is close to them, even if that person suffers from delusions.
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How to Diagnose Shared Delusional Disorder
If you suspect someone you care about suffers from Folie à Deux, you should encourage them to see a therapist. A qualified psychiatrist will be able to assess the condition of the patient and determine whether they have shared delusional disorder.
The mental health provider will talk to the patient about their symptoms, examine their medical history, and possibly run a few tests to understand whether the patient suffers from psychosis. In case the therapist concludes the patient has adopted false beliefs shared with them by a close friend or relative, a treatment plan will be developed.
How to Treat Shared Delusional Disorder
Fortunately, it is possible to treat Folie à Deux and help the patient return to normal life. Here are a few treatment options to consider:
- Separate the patients. If two or more people are affected by this disorder, make sure they do not spend time together and are treated by different therapists.
- Provide psychotherapy. Various therapies can be implemented to assist the patient; for instance, cognitive behavioral therapy will let the person understand their harmful thought patterns and cope with stress.
- Prescribe medication. A therapist may decide the patient requires antipsychotic drugs to manage their condition—this should help the patient resolve their symptoms and discontinue the medication after a few months of treatment.
FAQs
What Does Shared Delusional Disorder Mean?
Shared delusional disorder is a mental health disorder that affects two or more people who are close to one another, making them believe in the same false idea or delusion.
Is Shared Delusional Disorder Rare?
Yes, it is considered an uncommon disorder—it is not listed in the Diagnostic and Statistical Manual of Mental Disorders (DSM), and most therapists never encounter it in their practice.
What Are the Symptoms of Shared Delusional Disorder?
The main symptom of shared delusional disorder is embracing a false belief that is not based on reality. Besides, you may notice a person becomes withdrawn and avoids socializing.
Can You Treat Shared Delusional Disorder?
Shared delusional disorder is treatable—patients respond well to psychotherapy and medication, especially when the latter is prescribed for a short period of time.
What Is the Best Way to Help a Person With Shared Delusional Disorder?
If your friend or family member suffers from Folie à Deux, be there for them. Talk to them, spend time with them, and encourage them to see a mental health professional
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Overcoming Shared Delusional Disorder With California Mental Health
While Shared Delusional Disorder remains an enigma in many ways, we hope our guide inspires you to learn more about this unique condition and help the people affected by it If you or your loved one suffers from Folie à Deux reach out to California Mental Health Our team is here to diagnose the disorder and design a personalized treatment plan to suit the needs of the patient.
Have you ever dealt with shared delusional disorder? Share your experience in the comments below, and get in touch with California Mental Health to receive the assistance you need.
