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 01:59

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