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 08:00

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