Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 28.06.2025 04:18

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