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 15:01

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