Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 02.07.2025 14:33

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