Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 30.06.2025 00:41

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