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 08:13

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