Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 24.06.2025 00:44

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