Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 28.06.2025 16:00

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