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 07:29

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