Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 26.06.2025 02:31

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