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 00:36

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