Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 22.06.2025 02:12

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