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 07:22

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