Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 28.06.2025 10:38

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