Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 29.06.2025 01:11

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