Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 26.06.2025 05:10

Mental disorder
Head injury
Alzheimer's disease,
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Migraines
Seizures
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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Charles Bonnet syndrome
PTSD
Bipolar disorder
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Narcolepsy
Fever
Grief (yes, sadly)
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Pharmaceutical drug (abuse or side effects)
Withdrawal from benzodiazepines
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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Sleep disorders
Affective disorders
Stress
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Brain Tumors
Infection
Delirium tremens
Alcohol withdrawal
⁉️sources from my experiences and internet research ⁉️
Parkinson's disease
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Dementia with Lewy bodies
Alcohol
Hallucinogen use