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 07:53

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