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 12:39

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