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 21:15

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