Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 30.06.2025 01:12

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