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 01:56

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