Is there a correlation between nosepicking and psycholsis?

Nose Picking. Research studies indicate that at least 90% of adults do pick their noses, and in most it's "just a habit." there are some, though, in whom the behavior becomes compulsive, extremely time consuming and even physically injurious -- meriting the name "rhinotillexomania." many of the people whose nose-picking becomes physically dangerous (nosebleeds, infections, even self-mutilation) are psychotic.