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 00:45

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 ⁉️
Pharmaceutical drug (abuse or side effects)
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Head injury
Migraines
Charles Bonnet syndrome
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Hallucinogen use
PTSD
Sleep disorders
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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:
Delirium tremens
Stress
Grief (yes, sadly)
Fever
Alzheimer's disease,
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Parkinson's disease
Brain Tumors
Bipolar disorder
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Dementia with Lewy bodies
Affective disorders
Mental disorder
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Alcohol
Infection
Alcohol withdrawal
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Withdrawal from benzodiazepines
Seizures
Narcolepsy
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