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 00:58

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