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 12:25

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