Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 29.06.2025 15:10

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