Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 30.06.2025 12:15

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