Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 25.06.2025 19:01

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