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 00:18

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