Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 26.06.2025 06:56

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