Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 26.06.2025 00:01

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