Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 01.07.2025 12:33

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