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 01:43

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