Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 26.06.2025 03:12

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