Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 22.06.2025 02:52

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