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 10:31

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