Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 02.07.2025 08:28

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