Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 01.07.2025 00:53

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