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 10:01

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