Boogers mostly contain nasal mucus, or snot. As the mucus dries, it turns into a hardened booger. Share on Pinterest At some point, we’ve all had a booger dangling from our nose or quickly grabbed for ...

Hard boogers in the nose can be helpful in keeping dirt and germs out of your airways, but bloody boogers could indicate irritation or infection. If this is the case, a doctor can treat any underlying ...