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 23:55

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

⁉️sources from my experiences and internet research ⁉️

Pharmaceutical drug (abuse or side effects)

Stress

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Infection

Narcolepsy

Alcohol

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Hallucinogen use

Seizures

Alzheimer's disease,

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Affective disorders

Brain Tumors

Mental disorder

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Dementia with Lewy bodies

Grief (yes, sadly)

Migraines

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Charles Bonnet syndrome

Fever

Head injury

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

Delirium tremens

Alcohol withdrawal

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Bipolar disorder

Withdrawal from benzodiazepines

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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Parkinson's disease

PTSD

Sleep disorders

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