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 00:15

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