Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?

Last Updated: 02.07.2025 13:27

Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?

Alzheimer's disease,

Mental disorder

Parkinson's disease

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Charles Bonnet syndrome

Grief (yes, sadly)

⁉️sources from my experiences and internet research ⁉️

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Withdrawal from benzodiazepines

Brain Tumors

Head injury

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Alcohol withdrawal

Sleep disorders

Delirium tremens

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Fever

Affective disorders

Pharmaceutical drug (abuse or side effects)

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Migraines

Some of those things on the list are very very rare cases but I just wanted to cover everything (or almost everything).

Dementia and drug use cause paranoia. That is very common. Some of other things that can include delusions and/or hallucination can be:

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Alcohol

Hallucinogen use

Dementia with Lewy bodies

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Stress

PTSD

Seizures

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Infection

Narcolepsy

Bipolar disorder

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