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 02:35

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