Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 29.06.2025 08:32

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