Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 02.07.2025 14:19

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