Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 30.06.2025 01:00

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