Quick answer: To help someone with delusional disorder, don’t argue with the belief. Listen calmly, acknowledge how they feel (fear, anger, worry), and focus on the problems they agree they have, like poor sleep, stress or conflict. Then gently suggest a doctor’s visit for those problems, offer to go with them, and get emergency help right away if anyone is in danger.
Key Takeaways
- Arguing with a delusion almost never works. It usually makes the person defend the belief harder and trust you less.
- Talk about the feelings and everyday problems the belief causes, not whether the belief is true.
- Most people with delusional disorder don’t think they are ill, so frame help around stress, sleep or “having someone to talk to.”
- Delusional disorder is treatable. Antipsychotic medication and psychotherapy help many people function well.
- If there is a risk of harm to themselves or others, call 911 or call/text 988 right away.
What Is Delusional Disorder?
Delusional disorder is a type of psychotic disorder in which a person holds one or more fixed, false beliefs (delusions) for at least one month, even when shown clear evidence against them. Unlike schizophrenia, the person usually doesn’t have prominent hallucinations or disorganized speech, and outside of the delusion they may work, talk and behave quite normally. That is why family members are often confused: their loved one seems “fine” in every way except one.
Delusional disorder is uncommon, with an estimated lifetime prevalence of around 0.2% according to the DSM-5. It most often begins in middle or later adulthood.
Types of Delusions
- Persecutory: believing they are being spied on, followed, poisoned, cheated or plotted against. This is the most common type.
- Jealous: believing a partner is unfaithful without real evidence.
- Erotomanic: believing someone, often a well-known or higher-status person, is in love with them.
- Grandiose: believing they have a special talent, discovery, identity or relationship.
- Somatic: believing something is wrong with their body, such as an infestation or a defect.
- Mixed or unspecified: more than one theme, or a theme that doesn’t fit the above.
Delusional Disorder vs. Schizophrenia vs. Psychosis
| Delusional disorder | Schizophrenia | Psychosis (general term) | |
|---|---|---|---|
| Main feature | One or more fixed false beliefs | Delusions plus hallucinations, disorganized thinking and/or “negative” symptoms | Losing touch with reality. A symptom, not a diagnosis |
| Hallucinations | Absent or minor, and linked to the delusion | Common | Often present |
| Daily functioning | Often fairly normal outside the delusion | Usually clearly affected | Varies |
| Minimum duration | 1 month | 6 months (including at least 1 month of active symptoms) | Can be brief |
| Possible causes | Genetics, stress, isolation, brain chemistry | Genetics, brain development, environment | Mental illness, substances, medical conditions, sleep loss |
Signs Someone May Have Delusional Disorder
- A belief that doesn’t change no matter how much evidence is shown against it.
- Frequent talk about the same theme, such as a neighbor, spouse, employer or illness.
- Collecting “proof,” keeping records, or repeatedly contacting police, lawyers or doctors about the belief.
- Irritability, suspicion or anger when the belief is questioned.
- Withdrawing from family or friends who “don’t believe” them.
- Low mood or anxiety. Depression is common alongside delusional disorder.
Only a qualified clinician can diagnose delusional disorder. Similar beliefs can also come from other conditions, such as bipolar disorder, severe major depressive disorder (MDD) with psychotic features, dementia, thyroid problems, or substance use.
How to Help Someone With Delusional Disorder: 8 Steps
- Stay calm and listen. Let them explain without interrupting. Feeling heard lowers fear and defensiveness.
- Don’t argue, and don’t agree. You don’t have to say the belief is true. Try: “I can see this is really frightening for you.”
- Respond to the emotion. Fear, anger, sadness and worry are real even when the belief isn’t. Name the feeling and show you care.
- Find common ground. Look for problems you both agree on: “You haven’t been sleeping,” or “This stress is wearing you down.”
- Keep routines and trust. Be consistent, keep your promises and avoid going behind their back unless safety is at stake.
- Suggest help for the shared problem. Offer a doctor’s visit for sleep, stress or anxiety, which they are more likely to accept.
- Make it easy. Offer to book the appointment, drive them, or sit with them during a telepsychiatry visit from home.
- Look after yourself. Supporting someone with psychosis is tiring. Family support groups (for example, NAMI’s free Family-to-Family program) can help.
What to Say and What Not to Say
| Instead of saying… | Try saying… |
|---|---|
| “That’s crazy, nobody is following you.” | “That sounds scary. How long have you been feeling this way?” |
| “You’re imagining it.” | “I don’t see it the same way, but I can tell how upset you are.” |
| “You need to see a psychiatrist.” | “You’ve been so stressed and not sleeping. Would you talk to a doctor about that?” |
| “If you don’t get help, I’m leaving.” | “I care about you and I’ll be with you through this.” |
| Joking about or mocking the belief | Keeping a calm, respectful tone |
Why Arguing With a Delusional Person Doesn’t Work
A delusion feels completely real to the person who has it. When you challenge it, they often hear “you don’t believe me” or “you’re against me,” which can make you part of the delusion, especially with persecutory beliefs. You don’t need to win the argument. The goal is to keep enough trust that they will accept help.
How to Get a Delusional Person to Seek Help
Many people with delusional disorder have little or no insight, meaning they don’t believe they are ill. Pushing a diagnosis on them usually backfires. Many families find the LEAP approach (Listen, Empathize, Agree, Partner), developed by psychologist Dr. Xavier Amador, a useful guide:
- Listen to what they believe and what they want, without judging.
- Empathize with the feelings behind the belief.
- Agree on whatever you can, such as “This has been hard on you” or “You deserve to feel safe.”
- Partner on a goal you both want, like better sleep, less stress or fewer arguments, and treatment becomes part of reaching it.
Other ideas that often help:
- Start with their primary care doctor, who can rule out medical causes and make a referral.
- Choose a calm moment, not right after an argument or a crisis.
- Involve someone they trust, such as a sibling, faith leader or old friend.
- Offer choices, like “Would you prefer an in-person visit or a video appointment?”, so they keep a sense of control.
- Be patient. It often takes several conversations.
How to Help Someone With Persecutory Delusions
When someone believes they are being watched, followed or harmed, safety is their main concern. Don’t dismiss it. Ask what would help them feel safer right now and support reasonable steps. Avoid secret actions (like hiding medication in food) that could confirm their fear that people are plotting against them. If they start talking about defending themselves or harming the “persecutor,” treat it as an emergency.
Can You Force Someone to Get Mental Health Help?
In most cases, adults have the right to make their own treatment decisions. However, if a person is at substantial risk of serious harm to themselves or others because of mental illness, Texas law allows emergency detention for evaluation (Texas Health and Safety Code, Chapter 573). A peace officer can act directly, or an adult can apply to a judge or magistrate. Laws differ by state, so talk to a mental health professional or attorney about your situation.
When to Get Emergency Help
- Threats or plans to harm themselves or someone else
- Not eating, drinking or caring for basic needs
- Severe agitation, or acting on the delusion in dangerous ways
Call 911 for immediate danger, or call/text 988 (Suicide & Crisis Lifeline) for a crisis counselor 24/7.
Delusional Disorder Treatment
Delusional disorder is treatable, and many people improve, especially when treatment starts early and continues over time.
- Medication: Antipsychotic medicines are the main treatment and can reduce how strongly the belief is held and how much distress it causes. Antidepressants or anti-anxiety medicines may be added if depression or anxiety symptoms are present.
- Psychotherapy: Cognitive behavioral therapy for psychosis (CBTp) helps people test beliefs gently, cope with distress and improve daily functioning.
- Family support and education: Learning how to communicate reduces conflict and helps relapse prevention.
- Regular follow-up: A psychiatrist adjusts treatment, monitors side effects and supports long-term stability.
Get Help in McKinney and North Texas
If someone you love is struggling with delusions, paranoia or psychosis, the psychiatrists at Excel Psychiatry can help with a confidential evaluation and a treatment plan. We see patients in McKinney and offer telepsychiatry across Texas, which many hesitant patients find easier as a first step. We also treat related conditions, including depression and bipolar disorder.
Book an appointment or contact us to talk about the next step.
Frequently Asked Questions
How do you help someone with delusional disorder?
Listen without arguing, respond to their feelings, focus on shared problems like stress or sleep, and gently encourage a doctor’s visit. Offer practical help, such as booking or attending the appointment with them.
How do you talk to someone who is delusional?
Use a calm, respectful tone and short, simple sentences. Don’t confirm or mock the belief. Say something like, “I see it differently, but I can tell this is really upsetting for you.”
Can you force someone to get mental help?
Usually not, unless they are a danger to themselves or others. In Texas, emergency detention for evaluation is possible in those situations. In a crisis, call 911 or 988.
Are delusional people dangerous?
Most people with delusional disorder are not violent. The risk is higher when someone has persecutory or jealous delusions and talks about acting on them, or when they also use alcohol or drugs. Take any threat seriously.
What happens if delusional disorder goes untreated?
Untreated delusions can damage relationships, work and finances, and can lead to depression, isolation, legal problems or, in some cases, dangerous behavior. Earlier treatment generally leads to better outcomes.
Can delusional disorder be cured?
It is often a long-term condition, but with medication, therapy and support many people have far fewer symptoms and live full lives. Some recover completely.
Sources
- American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders, 5th ed., Text Revision (DSM-5-TR), 2022.
- National Institute of Mental Health (NIMH). Understanding Psychosis.
- Amador, X. I Am Not Sick, I Don’t Need Help! (LEAP method).
- National Alliance on Mental Illness (NAMI). Family-to-Family program.
- Texas Health and Safety Code, Chapter 573: Emergency Detention.
- 988 Suicide & Crisis Lifeline.
This article is for education only and is not a substitute for professional medical advice, diagnosis or treatment.
About Excel Psychiatry
This article was written by the Excel Psychiatry Clinical Team in McKinney, TX. We provide psychiatric care for adults in person and by telepsychiatry across Texas.
This article is for general information only and is not medical advice or a substitute for professional diagnosis or treatment. If you need help, book an appointment. In a crisis, call or text 988.
