Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 28.06.2025 02:08

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