20/08/2026
"The care home called to say Mum had been throwing her walking frame at staff. She'd been fine for weeks."
When someone living with dementia suddenly changes, it's frightening.
It might not be the dementia getting worse. It might be delirium.
Delirium is a sudden shift in someone's mental state, developing over hours or days. It is common, serious, and usually reversible. But it is frequently missed.
Research suggests 46% of delirium cases are misdiagnosed. In one study, hospital admission teams missed 75% of them.
Things to watch for: abrupt personality changes, fluctuating awareness, new confusion or agitation, sudden problems with walking or continence, refusing food or drink.
The causes are often treatable. Infections. Dehydration. New medications. Pain. Constipation. Poor sleep. A sudden change in environment.
If the change was sudden, treat it as a medical emergency. Contact a GP, call NHS 111, or go to A&E.
Explain that the symptoms started suddenly and you wonder if itβs delirium.
You shouldn't have to fight to be heard. But sometimes you do.
Professor June Andrews discusses why families of people living with dementia need to know about delirium π https://ow.ly/AK4w50ZBS7F