Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 26.06.2025 09:19

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