Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 29.06.2025 11:53

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