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 11:08

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