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 08:10

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