Table of Contents

• Why Physical Aggression Can Occur in Dementia
• Identifying Triggers and Unmet Needs for Aggression in Dementia
  • Keeping a Simple Trigger Log
• Step-by-Step: Responding During an Aggressive Episode
• De-escalation Techniques for Dementia That Work in Practice
• Creating a Calm, Safe Environment and Stable Routines
• When Aggression Needs Urgent Help or a Medical Check
• Getting Support at Home: Dementia Home Care Services
• Frequently Asked Questions

Why Physical Aggression Can Occur in Dementia

Physical aggression is one of the hardest behaviours to face when caring for someone with dementia. It can be frightening for the person affected, and it often leaves carers feeling hurt, drained and unsure what to do next. Understanding why physical aggression dementia occurs is the first step toward responding calmly.

Aggression in dementia is usually a form of communication, not a deliberate act. The person may be frightened, in pain, confused about where they are, or trying to tell you that something is wrong. As the illness affects memory and language, they often lose the words to explain their needs, so their feelings come out through their body instead.

Several factors commonly play a part:

• Pain or discomfort that they cannot describe, such as a full bladder, constipation or an aching joint
• Illness or infection, including urinary tract infections, which can cause sudden changes in behaviour
• Medication side effects or changes to doses
• Fear and confusion, especially when someone feels trapped or does not recognise a familiar face
• Tiredness, which is often worse in the late afternoon and evening, a pattern known as sundowning

Sudden or new aggression deserves particular attention. A marked change in behaviour can signal an acute medical problem, so it should be checked by a GP. We cover when to seek urgent help later in this guide.

Identifying Triggers and Unmet Needs for Aggression in Dementia

Most episodes have a trigger, even if it is not obvious at first. Looking for patterns can help you prevent future incidents rather than only managing the next one.

Common triggers include:

• Being rushed during personal care such as washing or dressing
• Loud noise, busy rooms or too many people talking at once
• Being approached from behind or touched without warning
• Hunger, thirst or a missed toilet break
• Being corrected or told they are wrong
• Changes in routine, visitors or the layout of their home

Think of each episode as a question: what was the person trying to tell me? The answer is usually an unmet need, such as a need for comfort, control, rest, reassurance or company.

Keeping a Simple Trigger Log

A short written record can reveal patterns that are hard to spot from memory alone. Keep it for two to three weeks and note:

• Date and time of the episode
• What was happening just before it started
• Where the person was and who was with them
• What helped, even if only a little
• Any signs of illness, pain or poor sleep the day before

Review the log with the person’s GP or dementia nurse. You may spot a repeating pattern, such as episodes after bath time, that can be planned around.

Step-by-Step: Responding During an Aggressive Episode

When an episode starts, your priority is safety, for both of you. The following sequence is designed to be followed in order, from the first sign of agitation through to the minutes after the incident. It covers distance, exits, bystander safety and what to do once the person has settled.

1. Create space immediately. Step back to at least two arm’s lengths away, and position yourself so that a clear route to the exit is behind you, not behind the person. Do not corner them or block a doorway.
2. Lower your voice and slow your movements. Speak in short, simple sentences at a steady pace. Avoid sudden gestures or reaching out, which can be misinterpreted as a threat.
3. Do not argue or correct. Saying “You’re wrong” usually makes things worse. Instead, acknowledge the feeling behind the behaviour with a neutral phrase such as “You seem upset. I’m here to help.”
4. Offer a simple choice. A question like “Would you like to sit down or have a cup of tea?” can restore a sense of control and redirect attention away from the trigger.
5. Remove the trigger if it is safe to do so. Turn down a loud television, ask other people to leave the room quietly, or move to a quieter space. Do this only if you can do so without passing close to the person.
6. Call for help if you feel unsafe. Do not attempt to restrain the person yourself. If another carer is present, agree in advance who will call for assistance and who will stay with the person.
7. After the episode, check for injuries and distress. Look for any signs of pain, bruising or confusion that were not present before. Offer reassurance and a familiar comfort item, such as a blanket or a favourite drink.
8. Record the incident in your trigger log. Note the time, what happened just before, who was present, what you tried and what helped. This record is valuable for spotting patterns and for any later conversation with a GP or dementia nurse.

Watch out: if the person is blocking your only exit or has already struck you, do not try to talk them down from close range. Move to a safe room, lock the door if necessary, and call 999 if you believe anyone is in immediate danger.

Your own wellbeing matters too. Once the moment has passed, take a few minutes to breathe and recover before carrying on. If episodes are becoming more frequent or severe, speak to the person’s GP or dementia nurse, and consider whether you need additional support at home.

De-escalation Techniques for Dementia That Work in Practice

De-escalation is about lowering the emotional temperature so the person can settle. Many carers find that small changes make a real difference.

• Use a calm, warm voice at a steady pace
• Sit or kneel so you are at the same level as the person, rather than standing over them
• Use reassurance such as “You’re safe. Nothing bad is going to happen.”
• Redirect gently to a familiar activity like looking at photos, listening to favourite music or folding laundry
• Give them time. Waiting in silence for a few moments often works better than pushing for an answer
• Stay with one topic and avoid switching between questions

A common mistake is trying to reason with someone during an episode. Logic rarely works at this stage. Focus on comfort and safety, and save the explanations for later, when they are calmer.

Keep the person’s life history in mind too. Music from their youth, a favourite drink or a familiar phrase can sometimes open the way to a calmer conversation.

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Creating a Calm, Safe Environment and Stable Routines

Preventing aggression is often easier than stopping it once it has started. A calm, predictable home reduces stress for the person living with dementia.

Consider these adjustments:

• Reduce background noise, such as a television left on in another room
• Keep lighting bright and even, and avoid harsh shadows or glare that can be confusing
• Keep the temperature comfortable, since being too hot or cold can increase agitation
• Use clear signs and familiar objects to help with orientation
• Keep items in consistent places so the person can find them without help
• Plan meaningful daily activities such as gentle walks, simple chores or music
• Stick to a regular routine for meals, rest and bedtime

Routines give structure and reduce surprises. Where changes are unavoidable, such as a hospital visit, prepare the person in advance and keep familiar belongings close by.

When Aggression Needs Urgent Help or a Medical Check

Some situations need immediate action rather than home management. Knowing the difference between an emergency, an urgent same-day concern and a routine review helps you act quickly and appropriately.

Call 999 immediately if:

• Anyone has been seriously hurt, or there is a risk of serious injury
• You feel you are in immediate danger and cannot leave safely
• The person is at risk of harming themselves or others in a way you cannot manage
• The person becomes suddenly unresponsive, has a seizure, or has difficulty breathing

Contact the GP, NHS 111 or the out-of-hours service promptly (same day) if:

• The aggression is sudden, new or getting worse without a clear reason
• The person seems unwell, feverish, drowsy or more confused than usual, this may indicate an infection such as a urinary tract infection, or delirium
• They have new pain, or you suspect constipation or a full bladder
• Medication may be contributing, and you need a review of doses or side effects
• Episodes are frequent or severe and you cannot keep everyone safe

Assessing for medical causes is an essential part of this step. Sudden or worsening aggression is not simply a behavioural problem; it can be the first sign of a physical illness that the person cannot describe. When you speak to a clinician, describe exactly what you have seen, when it began and what you have already tried. Mention any recent changes in medication, sleep, appetite or bowel habits. Your trigger log is very helpful here, as it provides a clear timeline.

A common pattern is that a urinary tract infection or constipation causes a marked change in behaviour before any other symptom appears. If you suspect either, do not wait for a routine appointment; seek same-day advice.

Remember that a clinician needs to assess the individual. This guide offers general information, not a diagnosis or a treatment plan. If you are unsure whether a situation is urgent, err on the side of seeking advice.

Getting Support at Home: Dementia Home Care Services

Caring for someone with dementia who becomes physically aggressive can be exhausting. You do not have to manage it alone.

Care Managers provides home care, live-in care and supported living across South Wales and England, with tailored care plans designed around individual routines and preferences. If you are looking for help that can ease the pressure at home, you can book a call with us to talk through your options and find the right level of care for your family.

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