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 07:25

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