Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 02.07.2025 16:42

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