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Dementia care decisions

Hallucinations, Delusions and Paranoia in Dementia: How Families Can Respond

By KindredMind Editorial Team

Prepared for publication review,

Hallucinations involve sensing something that is not present. Delusions are strongly held beliefs that do not match reality. Paranoia involves suspicious or threatening interpretations and can be part of a delusion. These experiences can occur in dementia, but not everyone has them. They are not interchangeable with every mistaken memory or accusation. [1] [2]

New hallucinations need medical evaluation. Sudden confusion, an abrupt major change or immediate danger needs urgent medical help. Do not assume dementia explains a new experience or try to diagnose a dementia subtype from it. [1] [3]

Understand the terms without labeling the person

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Understand the terms without labeling the person
TermWhat it describesImportant distinction
HallucinationSeeing, hearing or otherwise sensing something that is not thereA sensory experience, not simply a mistaken belief.
DelusionA strongly held belief that does not match realityReasoning or repeated correction may not change it.
ParanoiaSuspicion that others intend harm, theft or betrayalAn accusation still needs a fair check for a real concern.
ConfabulationAn account involving inaccurate or invented memories without knowingly trying to deceiveNot the same as deliberate lying, and not a label for every inaccurate story.
MisinterpretationMistaking a real object, sound or event for something elseLighting, reflections or background sound may matter.

Family members do not need to decide the diagnosis before asking for help. Describe what the person says and experiences instead of recording only a label. The Alzheimer's Society discusses confabulated memories and individualized responses to differing realities. [4]

Why might this happen?

Dementia can affect how a person interprets information and remembers events. However, medical problems, medication effects and hearing or vision difficulties can also contribute to unusual experiences. Reflections, shadows or background sounds may be confusing. These are possibilities to discuss, not a diagnosis you can make from a description online. [1] [2]

Not every suspicion is false. Missing money, poor treatment or an unfamiliar person may require a real check. Do not use dementia as a reason to dismiss an allegation of abuse or theft.

First check distress, danger and possible needs

Ask whether the experience is frightening, unwelcome or leading to danger. Stay calm and give the person space. If an experience is not distressing or dangerous, repeated correction may not be useful. New symptoms should still be discussed with the clinician. [1]

If there is immediate danger to the person or someone else, get local emergency help. Do not try to manage a dangerous situation alone with a conversation technique.

Sudden confusion can have causes that need urgent treatment. Seek medical help immediately for an abrupt change, even if the person already has dementia. Do not wait to see whether changing the lighting solves it. [3]

Respond to feelings without confirming an unverified event

Listen to what is troubling the person. “That sounds frightening” acknowledges fear without confirming that an intruder is present. Avoid a courtroom-style argument or insisting that the person prove what they saw.

You can answer honestly without confrontation. If asked whether you see someone, a response such as “I don't see anyone, but I can see that you are worried” may fit. Do not promise protection you cannot provide or pretend to inspect a room when you are speaking by phone. These examples illustrate an approach, not words that work for everyone. [1]

Examples families may encounter

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Examples families may encounter
What is saidWhat to checkAn illustrative response
“Someone is in my room.”Is anyone present? Are shadows, reflections or sounds confusing? Is there immediate danger?“You sound worried. Can you tell me what you notice?”
“You stole my money.”Is the item missing? Could there be a real financial concern?“That money matters to you. Let's check what happened.”
“I need to go home.”A wish, actual location concern or unmet need, not automatically a delusion“What are you missing about home?”
An accusation involving a spouseSafety, distress, privacy and any factual concern“I can hear this is upsetting. Tell me what is troubling you.”

Do not interpret a single sentence as proof of paranoia, hallucination or a dementia stage. If an allegation concerns harm, use appropriate safeguarding and professional channels rather than simply redirecting the person.

Adjust the setting when appropriate

Check comfortable lighting, confusing reflections and background sound. Ask about access to usual hearing or vision aids. A different room or a welcome activity may be useful, but do not force a distraction or use it to avoid an unresolved concern.

Ask permission before touching or moving someone. Stop an approach that adds discomfort. For broader principles, see dementia communication. If there is a recurring evening pattern, the sundowning guide explains why timing alone does not establish a cause. [1] [2]

Prepare useful observations for the clinician

  • What was seen, heard or believed, using the person's words where possible.
  • Whether it is new, how suddenly it began and how often it occurs.
  • Distress, sleep changes, pain, illness or difficulty with daily needs.
  • Recent medication changes, without making changes yourself.
  • Hearing, vision, lighting and other environmental observations.
  • Any danger, allegation or difficulty obtaining support.

Seek prompt clinical advice for new or persistent symptoms and urgent help for abrupt confusion or danger. Discuss medication questions with the prescriber. This guide does not recommend a drug, sedative, supplement or dose change. [1] [2] [3]

Support without a product promise

Being accused can be painful. Ask for practical support and professional advice rather than expecting yourself to respond perfectly. The caregiver support hub helps distinguish care, navigation, emotional support and urgent help.

KindredMind publishes this guide and sells AI conversation and scheduled prompts. It does not diagnose or treat hallucinations, delusions or paranoia, verify allegations or replace clinical assessment, human supervision or emergency services.

Sources and scope

Sources checked November 9, 2026. General education, not diagnosis, a subtype checklist or an individualized response plan.

  1. Alzheimer's Association: Hallucinations. Sensory experiences, medical review, honest reassurance and environmental checks.
  2. Alzheimer's Association: Suspicions and Delusions. Beliefs, suspicious interpretations and response options.
  3. NHS: Sudden confusion. Immediate assessment rather than self-diagnosis.
  4. Alzheimer's Society: Difficult questions and confabulated memories. Memory accounts are not automatically deliberate lies.