
Dementia and hallucinations have more in common than you think. What you’re witnessing is one of the most distressing parts of dementia: hallucinations and delusions. You’re far from alone. Most families caring for a loved one with dementia will face this at some point
They tend to show up more as the disease progresses and they almost always feel worse at night.
Here’s what this article will give you: a real understanding of why this happens, simple ways to respond with calm and kindness and honest guidance on when it might be time to ask for more help.
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Why Is Mom Seeing People Who Aren’t Really There?
Here’s something that might actually bring you a little relief: this is not your fault and it is not your mom making things up. Her brain is genuinely changing and those changes affect how she makes sense of what she sees, hears and feels.
What Is the Difference Between a Hallucination and a Delusion?
Hallucinations are sensory experiences that feel completely real to her, even though they aren’t. She might see people sitting in the room, hear footsteps in the hallway, smell smoke that isn’t there or feel something crawling on her skin. Visual hallucinations are the most common type in dementia. She is not pretending.
Delusions are different — they’re fixed false beliefs. Your mom might be convinced you’ve been stealing from her, that a neighbor is spying on her or even that a loved one has been secretly replaced by a stranger (this is actually called Capgras syndrome). No amount of gentle reasoning changes a delusion the belief holds firm even when shown evidence to the contrary.
What Actually Triggers These Episodes?
There’s rarely one single cause. Usually, a few things combine:
- Sundowning: Up to two-thirds of people with dementia experience this (Khachiyants et al., 2011). Late afternoon and evening bring fatigue, shifting light and a disrupted internal clock — and all of that makes hallucinations and agitation worse.
- Unmet needs: When your mom can no longer tell you she’s hungry, thirsty, in pain or needs the bathroom, that frustration can surface as agitation or frightening experiences.
- Sensory gaps: Missing glasses or hearing aids matter more than most people realize. When the brain is already struggling, losing those sensory anchors can actually trigger hallucinations.
- Environmental overload or understimulation: A space that’s too loud and chaotic or too quiet and boring, can trigger an episode.
- Big changes: Moving to a new place, even a better one, is a common trigger for a spike in symptoms.

Should I Tell Her That What She Believes Isn’t Real?
Here’s the honest truth: correcting her won’t work. Trying to convince her that what she sees isn’t real won’t bring her back to your reality, it will only make her more frightened and more upset. The real question isn’t whether to tell the truth. It’s how to respond in a way that keeps her calm.
How Do I Step Into Her Reality Without Lying?
This is where something called validation comes in. It doesn’t mean agreeing with the hallucination. It means acknowledging that her feelings are real, even when what she’s seeing isn’t.
If she asks, “Do you see that person in the corner?” you don’t have to pretend. You can say, honestly: “I know you see something, but I don’t see it.” That’s it. You’re not dismissing her. You’re not lying. You’re simply meeting her where she is without confirming something that isn’t there.
What Should I Never Say When She’s Experiencing Hallucinations?
Avoid anything that challenges or corrects her perception. Phrases like “That’s not real” or “You’re seeing things again” feel logical to you, but to her, they feel like a betrayal. Her experience is completely real to her and when you argue with it, you don’t just lose the argument. You lose her trust. No matter how frustrated or exhausted you feel in that moment, hold back the correction. It won’t help.
When Do I Need More Help Than I Can Provide At Home?
There’s a moment many families reach quietly, privately where they ask themselves: Have I done enough? Can I keep doing this? That moment isn’t a weakness.
How Do I Know If She Needs Memory Care?
Watch for these signs:
- She’s trying to leave the home repeatedly, especially at night
- She can’t stay safe without someone watching her one-on-one
- Her nighttime episodes are waking the whole household and leaving everyone exhausted
- Her fear and distress are escalating beyond what you can soothe at home
When those things are happening regularly, it’s not a reflection of your effort. It’s a reflection of how much her needs have grown.
You’ve Already Done Something Important Today
Learning how to respond to these moments, with calm, with kindness, with understanding that matters more than you know. Your mom is lucky to have someone who cares enough to look for answers.
The team at Heritage Court Waukesha understands what families like yours are going through. There’s no pressure, no sales pitch just a real conversation about what your mom needs and how to get her there. Call them at (262) 542-3434 whenever you’re ready.
FAQs
Q1. At what stage of dementia do hallucinations typically begin?
Hallucinations usually appear during the moderate-to-severe stages of Alzheimer’s disease, typically around four years after diagnosis. They’re uncommon in early stages but become more frequent as the disease progresses to stages 5 and 6. Visual hallucinations are the most common type.
Q2. Should I correct my loved one when they’re experiencing hallucinations?
No, arguing or trying to convince them that what they see isn’t real will only increase their distress and agitation. Instead, validate their emotional experience by saying something like “I know you see something, but I don’t see it.” This acknowledges their feelings without confirming the hallucination, helping maintain trust while keeping them calm.
Q3. What’s the best way to calm someone experiencing frightening hallucinations?
Use reassuring words like “Don’t worry, I’m here to protect you” and offer gentle physical comfort through hand-holding or patting. Acknowledge their fear by saying, “I know this is frightening for you,” and stay with them until the episode subsides. You can also try redirecting their attention by moving to a well-lit room or engaging them in a calming activity.




