Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 26.06.2025 04:16

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