Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 28.06.2025 02:26

Seizures
Narcolepsy
Parkinson's disease
Grief (yes, sadly)
Migraines
Infection
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Alzheimer's disease,
Fever
Pharmaceutical drug (abuse or side effects)
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Affective disorders
Bipolar disorder
Stress
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Dementia with Lewy bodies
Some of those things on the list are very very rare cases but I just wanted to cover everything (or almost everything).
Head injury
Dementia and drug use cause paranoia. That is very common. Some of other things that can include delusions and/or hallucination can be:
PTSD
Alcohol withdrawal
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Mental disorder
Charles Bonnet syndrome
⁉️sources from my experiences and internet research ⁉️
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Hallucinogen use
Brain Tumors
Withdrawal from benzodiazepines
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Sleep disorders
Delirium tremens
Alcohol
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