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 09:09

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