Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 02.07.2025 17:41

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