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 00:07

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