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 02:22

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