If you sneeze too hard, you can fracture a rib. If you try to suppress a sneeze, you can rupture a blood vessel in your head or neck and die. If you keep your eyes open by force, they can pop out.

While sneezing violently can cause minor strains or rare injuries, the extreme claims about ribs fracturing easily, dying from suppressed sneezes, and eyes popping out from being kept open are medical myths. Sneezing with eyes open is physically possible and normal, and your eyes are securely held in place by muscles and nerves.