Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 28.06.2025 00:00

Grief (yes, sadly)
Narcolepsy
⁉️sources from my experiences and internet research ⁉️
Why don't younger men like older women?
Charles Bonnet syndrome
Sleep disorders
Stress
Migraines
Bipolar disorder
Seizures
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Alzheimer's disease,
Fever
Withdrawal from benzodiazepines
Pharmaceutical drug (abuse or side effects)
Dementia with Lewy bodies
Head injury
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Parkinson's disease
Affective disorders
Infection
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Brain Tumors
Mental disorder
PTSD
When reading can – and can't – help with mental health - BBC
Some of those things on the list are very very rare cases but I just wanted to cover everything (or almost everything).
Alcohol
Alcohol withdrawal
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Hallucinogen use
Delirium tremens
Dementia and drug use cause paranoia. That is very common. Some of other things that can include delusions and/or hallucination can be: