Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 29.06.2025 11:10

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