Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 02.07.2025 06:23

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