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 00:05

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