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 00:40

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