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 07:23

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