Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 01.07.2025 04:36

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