Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 27.06.2025 08:51

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