Eu duvido que algo como aquela cena aconteceria, mas eu acho que é possível. Nosebleeds pode ocorrer de alta pressão sanguínea , que eu em > pense é o que estaria acontecendo lá.
No entanto, hemorragias nasais afetam os mergulhadores (novos mergulhadores típicos, mas ainda assim), daqui :
New divers frequently report nosebleeds after diving primarily because they are unaware of the importance of equalizing the sinuses and middle ears (via the Valsalva method). The barotrauma that is produced when the sinuses are not cleared can cause blood vessels in the lining of the nose to burst. These vessels lie very close to the top of the mucous membrane lining in the nose and sinuses, and the blood can come from the lining in either. This type of barotrauma, generally the result of air being trapped within the sinuses, is not always painful, though the presence of blood can be disconcerting to a new diver. With this type of injury, blood can run down the back of the throat or pool in the sinus below the eye and emerge at a different time. It can also act as a growth medium for bacteria and result in sinus infections.
Dito isto, acho que pode estar relacionado com o que é encontrado aqui :
Em suma, parece inteiramente possível e há muitas maneiras pelas quais o nariz de Billy pode ter começado a sangrar.Nosebleeds are relatively common, especially in children, according to NHS Choices. They occur when the tiny blood vessels in your nose are disturbed or become inflamed due to infection or increased pressure -- such as when you blow your nose or even hold your breath when swimming.