Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 28.06.2025 10:57

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