Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 29.06.2025 16:37

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