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 11:33

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