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 17:31

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