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 00:11

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