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 11:00

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

Grief (yes, sadly)

Hallucinogen use

Dementia with Lewy bodies

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Fever

Parkinson's disease

Affective disorders

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PTSD

Seizures

Narcolepsy

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Pharmaceutical drug (abuse or side effects)

Delirium tremens

Alcohol withdrawal

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Alzheimer's disease,

Alcohol

Sleep disorders

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Brain Tumors

Mental disorder

Head injury

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Bipolar disorder

Charles Bonnet syndrome

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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Infection

Migraines

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

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Stress

⁉️sources from my experiences and internet research ⁉️

Withdrawal from benzodiazepines

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