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 04:05

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