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 00:24

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