Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 29.06.2025 08:21

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