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 00:48

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