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 00:08

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