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 23:56

Alzheimer's disease,
Migraines
Delirium tremens
Stress
Grief (yes, sadly)
Charles Bonnet syndrome
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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).
⁉️sources from my experiences and internet research ⁉️
Sleep disorders
Alcohol withdrawal
Narcolepsy
Alcohol
Affective disorders
Brain Tumors
Mental disorder
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Parkinson's disease
PTSD
Fever
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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:
Bipolar disorder
Infection
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Dementia with Lewy bodies
Hallucinogen use
Head injury
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Pharmaceutical drug (abuse or side effects)
Withdrawal from benzodiazepines
Seizures