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 05:44

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