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 23:57

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