Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 27.06.2025 09:48

Narcolepsy
Stress
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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Affective disorders
Bipolar disorder
Infection
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Brain Tumors
Seizures
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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Parkinson's disease
Alzheimer's disease,
Sleep disorders
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Dementia with Lewy bodies
PTSD
Hallucinogen use
Alcohol
Head injury
⁉️sources from my experiences and internet research ⁉️
Pharmaceutical drug (abuse or side effects)
Migraines
Fever
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Mental disorder
Charles Bonnet syndrome
Withdrawal from benzodiazepines
Alcohol withdrawal
Delirium tremens
Grief (yes, sadly)