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 10:11

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