Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 27.06.2025 00:43

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