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Dr. Andrew Rynne

Family Physician

Exp 50 years

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Is head injury a risk factor for dementia?

Answered by
Dr. Michelle Gibson James

General & Family Physician

Practicing since :2001

Answered : 16348 Questions

Posted on Thu, 22 Nov 2018 in Brain and Spine
Question: I hit my head pretty hard last while getting into the car. I felt nausea afterwards. I am worried about developing dementia. I am a 55 yr. old female. My father had alzheimers disease.
Answered by Dr. Michelle Gibson James 26 minutes later
Brief Answer:
The risk is small but present.

Detailed Answer:


Thanks for your query.

It is understandable to be concerned but the risk is small.

There was a recent medical study published in the medical journal Plos One in 2017 (entitled - Head injury as a risk factor for dementia and Alzheimer's disease), that looked at this issue and it found that head injury can sometimes be associated with dementia in the future in a few persons, but the risk is low.

Interestingly as well, that study also found that the risk in women is lower and queried whether the hormones in females is protective.

If the number of persons who suffer a head injury such as yours or in a different way, on a daily basis is considered, then for these individuals to have dementia, would put the number of persons with dementia as high.

I hope this helps, feel free to ask any other questions.

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
Follow up: Dr. Michelle Gibson James 11 minutes later
Thank you, thats makes me feel better. I was very worried.
Answered by Dr. Michelle Gibson James 6 minutes later
Brief Answer:

Detailed Answer:


Understandable but though there is a risk, it is small.

I hope I have answered your query.

Dr. Michelle Gibson James, General & Family Physician
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar

The User accepted the expert's answer

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