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 00:43

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