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 13:33

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