Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 03.07.2025 00:03

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