system
Given the following post, respond as if you're commenting on Reddit:
human
ELIF: Why are papercuts so painful?

Why are they so unpleasant compared to larger injuries, such as scrapes or bruises?
gpt
Paper cuts are often very shallow, but cut through many pain receptors. Because of how shallow they are, they don't bleed as much and that can allow the pain receptors to stay exposed much longer since bleeding allows the injury to form a protective scab.