Dementia and Wandering: Why It Happens and How to Keep Your Loved One Safe

Your mum went for a walk at 3pm on a Tuesday and didn't come back. She was found two hours later, a mile from home, sitting on a bench she didn't recognise, unable to explain how she got there.

Or maybe it hasn't happened yet — but you can feel it coming. The front door left open. The coat put on at odd hours. The restlessness that seems to build toward something.

For families living with dementia, the possibility that their loved one will leave home and become disoriented is one of the most persistent and anxiety-inducing concerns. This guide is about understanding why it happens, what you can do to reduce the risk, and what to do when prevention isn't enough.

Why people with dementia leave home

The word "wandering" is widely used, but it's worth understanding that from the person's perspective, there's almost always a reason — even if they can't articulate it. Understanding the reason is the first step toward prevention.

Past routines. Your dad used to leave for work at 7:30 every morning for 40 years. His body still knows that routine. Getting dressed and heading for the door at 7:30 isn't random — it's deeply habitual.

Searching for something familiar. When the present feels confusing, the pull toward something known — a childhood home, a former workplace, a person from the past — can be powerful. They may be trying to go "home" even when they're standing in their own kitchen.

Restlessness and excess energy. Some people become physically restless, particularly in the afternoon and evening. Walking is a natural response to that internal agitation. It's not directionless — it's the body trying to discharge uncomfortable energy.

Boredom or under-stimulation. A day with nothing to do and nowhere to go can create an urge to move. The front door represents possibility, even if what lies beyond it is unclear.

Confusion about time or place. Disorientation can make familiar surroundings feel unfamiliar. They may leave the house because they don't recognise it as home.

Physical needs. Looking for a bathroom, feeling hungry, being too hot or too cold — sometimes the reason is practical and unmet.

Prevention through routine

A predictable daily structure is one of the most effective ways to reduce restlessness and the impulse to leave. When the day has a rhythm, there's less internal discomfort seeking an outlet.

Build in regular movement. A daily walk — at the same time, along the same route, with a companion — provides the physical activity and environmental change that the body craves. If they're going to walk, make it a planned, safe, enjoyable part of the day rather than an unplanned departure.

Fill the empty hours. The highest risk times are often the least structured — late morning, mid-afternoon, early evening. Having a gentle activity, a social interaction, or a purpose during these windows reduces the chance that restlessness builds to the point of leaving.

Address sundowning proactively. Many families notice that the urge to leave intensifies in late afternoon and early evening. This pattern is linked to fatigue, changing light, and disrupted body clock rhythms. A calm, well-lit environment with a familiar routine during these hours helps. (Read more: Sundowning — What Families Need to Know)

Maintain consistent timing. Meals, activities, rest, and social time at roughly the same times each day create a predictable framework. The body adjusts to this rhythm, and the need to seek something different diminishes.

(Read more: Building a Daily Routine That Works)

Prevention through environment

Small changes to the home environment can make a significant difference without making your loved one feel restricted.

The front door

The front door is the critical point. Here's how to manage it without locking someone in (which is never appropriate — it's a fire risk and causes extreme distress):

• Door chimes or alarms that alert you when the door opens. These give you time to respond without restricting the person's movement.
• Visual cues that reduce the appeal of the door. A dark mat in front of the door (which some people with dementia perceive as a hole and avoid), a curtain covering the door, or removing the coat and shoes from the hallway so the visual "leaving sequence" isn't triggered.
• A stop sign or "closed" sign on the door — simple visual cues that suggest the door isn't for going through. This works for some people, not all.
• Camouflaging the door with a mural, wallpaper matching the surrounding wall, or a bookshelf placed in front of a secondary exit. Out of sight, out of mind — literally.

The garden

A safe, enclosed garden can satisfy the need for outdoor time without the risks of going further:

• Secure fencing that isn't obviously a barrier (hedges feel more natural than metal fences)
• A walking circuit — even a small loop gives a sense of journey
• Interesting things to see and do: bird feeders, flowers, a bench with a view
• Easy access from the house so going outside is effortless

Inside the home

• Reduce visual triggers for leaving. Car keys visible on a hook, a coat on a peg, shoes by the door — these can prompt the "going out" routine. Store them out of sight.
• Create engagement spaces. A comfortable chair near a window with a view, a table with familiar objects to handle, a music corner. Give the home competing attractions.
• Good lighting. Dim, shadowy areas can feel unfamiliar and uncomfortable, prompting the desire to leave. Well-lit spaces feel safer.

Prevention through engagement

Boredom is a powerful driver. When someone has nothing to occupy their mind and body, moving — leaving — feels like the obvious answer.

Match activities to the time of day. Energy is typically highest in the morning, so that's the time for more engaging activities. Afternoons suit calmer, sensory activities. Evenings need the least stimulation.

Offer purpose. Helping with household tasks, looking after a pet, tending plants — anything that provides a sense of contribution and usefulness. The feeling of being needed is deeply stabilising.

Social connection. Loneliness and isolation increase restlessness. Regular contact with family, friends, or community groups (even brief visits) can make the difference between a settled day and an unsettled one.

Brain wellness activities. Simple games, puzzles, music, reminiscence activities — these engage the mind in a way that satisfies the need for stimulation without physical restlessness. (Read more: Brain Games for Dementia)

Using technology wisely

Technology complements — but doesn't replace — the strategies above. Here's what's genuinely useful:

Door sensors and smart home alerts. Know immediately when the front door opens, without having to watch it yourself. Some systems can distinguish between a door opening briefly (someone looking outside) and a door opening followed by departure.

GPS tracking. If prevention strategies reduce the risk but don't eliminate it, knowing where your loved one is provides a crucial safety net. Options include dedicated wearable trackers, phone-based location sharing, and GPS insoles. (Read our full guide: GPS Trackers for People With Dementia)

Safe zone alerts. Set up a virtual boundary around your home (and other familiar places) and receive an alert if your loved one crosses it. This gives you early warning without requiring constant surveillance.

A "Take Me Home" feature. If your loved one carries a phone, a one-tap button that opens directions home can help them self-rescue in moments of uncertainty — before the situation becomes an emergency.

What to do if your loved one is missing

Despite all precautions, it can happen. Having a plan prepared in advance makes the difference between panic and effective action.

Immediate steps

1. Check the house and garden first. People are sometimes found in unexpected corners of their own home.
2. Check familiar routes and places. The walk they always take, the old workplace, a friend's house, the bus stop.
3. Ask neighbours. Someone may have seen which direction they went.
4. Call their phone if they have one. Keep your voice calm: "Hi Dad, it's James. Where are you? I'm coming to find you."
5. Contact the police — don't wait. In most countries, you can report a vulnerable person missing immediately (no 24-hour waiting period). Provide a recent photo, their description, their likely clothing, and any places they might have gone.

Preparedness that pays off

Keep the following ready at all times:

• A recent, clear photograph (update every few months)
• A written description: height, weight, distinguishing features
• A list of places they're likely to go
• Their doctor's contact details
• Any medical information that first responders would need

Some countries and regions have registration schemes for vulnerable adults that allow you to provide this information to police in advance so it's immediately available if needed. Check with your local police service to see what's available in your area.

Afterwards

When your loved one is found safe, take some time to recover — both of you. Then, when things are calm:

• Review what happened. What triggered the departure? What time was it? Were there warning signs?
• Adjust your strategies. Does the door need a chime? Does the afternoon routine need more structure? Is it time to consider a GPS tracker?
• Talk to the wider family. Make sure everyone knows the plan and has a role in it.
• Be kind to yourself. This was not your fault. You cannot supervise someone every moment of every day, and the strategies that were working may simply need updating.

A note on dignity

Throughout all of this — the door sensors, the safe zones, the geofences — remember that your loved one is an adult who deserves respect and autonomy. The goal is never to cage or control. It's to create a framework of safety that allows as much freedom as possible.

Every restriction you introduce should be the minimum needed for safety, introduced with compassion, and reviewed regularly. If a walk with a companion meets their need for movement and fresh air, that's always better than a locked door.

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OurTurn is a family care coordination tool — not a medical device. For safety concerns about your loved one, consult their healthcare team or contact your local emergency services.