Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 03.07.2025 03:03

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