Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 30.06.2025 00:43

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