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

Last Updated: 30.06.2025 09:00

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

Sleep disorders

Parkinson's disease

Pharmaceutical drug (abuse or side effects)

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Narcolepsy

Grief (yes, sadly)

Affective disorders

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Alzheimer's disease,

Alcohol withdrawal

Dementia with Lewy bodies

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Stress

Head injury

Hallucinogen use

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Withdrawal from benzodiazepines

Seizures

Mental disorder

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PTSD

Delirium tremens

Fever

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Charles Bonnet syndrome

Infection

Alcohol

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Bipolar disorder

Some of those things on the list are very very rare cases but I just wanted to cover everything (or almost everything).

Dementia and drug use cause paranoia. That is very common. Some of other things that can include delusions and/or hallucination can be:

I broke up with my boyfriend because he wasn’t transparent about his past, it hurts me and he doesn’t care. I told him in the beginning of our relationship that it was a deal breaker for me what do I do?

⁉️sources from my experiences and internet research ⁉️

Brain Tumors

Migraines

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