Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 01.07.2025 14:10

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