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 05:45

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