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 14:49

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