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 02:22

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