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 03:28

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