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 01:11

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