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 00:03

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