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 04:12

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