Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 03.07.2025 00:46

Infection
Narcolepsy
Bipolar disorder
Delirium tremens
Migraines
Parkinson's disease
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Grief (yes, sadly)
Pharmaceutical drug (abuse or side effects)
Hallucinogen use
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Alcohol withdrawal
⁉️sources from my experiences and internet research ⁉️
Dementia with Lewy bodies
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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:
Stress
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Affective disorders
Mental disorder
Withdrawal from benzodiazepines
Seizures
Alcohol
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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Alzheimer's disease,
Head injury
Charles Bonnet syndrome
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Sleep disorders
PTSD
Brain Tumors