Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 26.06.2025 00:20

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