Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 27.06.2025 00:28

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