Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 03.07.2025 09:00

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