Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 23.06.2025 22:36

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