Seizures are not the first thing families associate with dementia, but the two are linked more than many realize. Understanding the connection helps caregivers recognize warning signs and respond appropriately. This guide explains whether dementia can cause seizures, whether seizures affect memory, and when to seek urgent care.
Disclaimer: This article is general information, not medical advice. Always consult a doctor about movement changes, medications, or sudden symptoms.
Can dementia cause seizures?
Yes. People with dementia, particularly Alzheimer’s disease, have a higher risk of seizures than the general older population, and the risk tends to rise as the disease advances. The brain changes of dementia can disrupt normal electrical activity, sometimes triggering seizures. Many are subtle rather than dramatic.
Can seizures cause memory problems?
Seizures can cause temporary confusion and memory lapses, especially right afterward, and frequent seizures may affect cognition over time. However, an isolated seizure does not equal dementia. If memory problems and seizures occur together, a doctor should evaluate the cause.
Dementia types linked with seizure risk
Alzheimer’s disease carries the clearest increased seizure risk, especially in younger-onset and advanced cases. Vascular dementia, linked to strokes, can also raise the risk. Seizures in dementia are often subtle, such as brief staring spells, confusion, or muscle twitches, rather than full convulsions.
When seizure-like symptoms need urgent care
Call emergency services for a first-time seizure, a seizure lasting more than five minutes, repeated seizures without recovery in between, or a seizure with injury or breathing trouble. These are medical emergencies. New seizure-like episodes always warrant prompt evaluation.
What caregivers should track
- When episodes happen and how long they last.
- What the person was doing beforehand.
- Specific movements, staring, or confusion observed.
- How long recovery takes afterward.
- Any injuries or new medications.
Noticing concerning symptoms?
Always involve a doctor for seizure-like episodes. We can help with day-to-day care.
Frequently asked questions
Are seizures common in dementia?
They are more common in dementia, especially Alzheimer’s, than in the general older population, and risk increases as the disease advances. Many are subtle.
Can a seizure look like confusion in dementia?
Yes. Seizures in dementia are often subtle, appearing as brief staring spells, confusion, or twitching rather than full convulsions, which can make them easy to miss.
Related guides
- What Conditions Can Mimic Dementia?
- Dementia and Walking, Falling, and Shaking
- Lewy Body vs Alzheimer’s vs Frontotemporal Dementia
- Medications Linked to Dementia Symptoms
The bottom line
Dementia, especially Alzheimer’s, raises the risk of seizures, which are often subtle and easy to miss. Track any episodes, learn the emergency warning signs, and always have new seizure-like symptoms evaluated by a doctor. Awareness helps caregivers respond quickly and keep their loved one safe.
About Created Out Of Mind
Created Out Of Mind is a knowledge hub focused on dementia care, mental health, and the practical realities families face day to day. We specialize in turning clinical guidance into steps a caregiver can actually use at home — covering daily care and behavior, memory-care decisions and costs, and the products and tools that make life easier for people living with dementia and the people looking after them.
How we write. Every article is grounded in guidance from recognized dementia and mental-health authorities and reviewed against current best practice before publication. Sources referenced: Alzheimer’s Association, National Institute on Aging, Mayo Clinic.
Not medical advice. This article is for information only and is not a substitute for advice from a qualified clinician. Talk to your doctor or dementia specialist about your situation.
Last reviewed: August 28, 2026