Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 03.07.2025 00:28

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