Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 30.06.2025 00:21

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