Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 28.06.2025 00:11

Bipolar disorder
Charles Bonnet syndrome
⁉️sources from my experiences and internet research ⁉️
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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:
Stress
Sleep disorders
Brain Tumors
Alcohol
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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Hallucinogen use
Infection
Seizures
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Narcolepsy
Alcohol withdrawal
Mental disorder
Pharmaceutical drug (abuse or side effects)
Withdrawal from benzodiazepines
Fever
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Alzheimer's disease,
Migraines
Head injury
Delirium tremens
Parkinson's disease
PTSD
Affective disorders
Dementia with Lewy bodies
Grief (yes, sadly)