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 13:46

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