Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 25.06.2025 00:56

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