Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 01.07.2025 03:10

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