Rarer types of dementia

Alzheimer's disease is the most common cause of dementia, but there are many rarer diseases and conditions that can lead to dementia, dementia-like symptoms or mild cognitive impairment.

What are the rarer types of dementia?

Rarer forms of dementia account for only around 5 per cent of all dementia cases in the UK. This page outlines some of these rarer causes and gives some suggestions for where to go for more specialist advice and information.

  • Corticobasal degeneration (CBD)
  • Huntington's disease
  • Multiple sclerosis (MS)
  • Niemann-Pick disease type C
  • Normal pressure hydrocephalus (NPH)
  • Parkinson's disease dementia (PDD)
  • Posterior cortical atrophy (PCA)
  • Progressive supranuclear palsy (PSP)

Being told that you or a loved one has dementia can be very difficult and you may experience a range of different emotions as time goes on. Support is available if you need it. Alzheimer's Society's National Dementia Helpline (0300 222 11 22) can provide information, support, guidance and signposting to other organisations.

More practical and emotional support near you

There are dementia services and support groups in your area. Find out what's available where you are.


Further reading