Have Dementia or Have a Dementia. Which Is Correct?

We say "have dementia". It's incorrect to say "have a dementia". When talking about diseases and conditions, the article "a" is generally unnecessary.

We say "have dementia". It's incorrect to say "have a dementia".

My father has dementia.

My father has a dementia.

When talking about diseases and conditions, the article "a" is generally unnecessary.

Learn how to stay independent for longer if you have dementia.

A number of conditions can happen as a result of having dementia.

Follow the same practice with other related phrases and expressions, such as "treat dementia", "cause dementia", "prevent dementia", "develop dementia", etc.

There is a range of diseases that can cause dementia.

Reading and eating healthy can help prevent dementia.

Some people have a higher risk of developing dementia.

A partial list of conditions that do not take the article a/an can be found below:

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