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 00:10

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