Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 03.07.2025 00:51

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