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 19:40

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