Common nosebleed is not life-threatening, but under unfortunate circumstances it may turn out to be fatal.
Nose bleeds usually result from damaged upper blood vessels in the nose.
The damage is not life-threatening, but if you rip the large internal artery carotid internally over, you can bleed to death.
In rare cases, the blood from a mild nose bleed can block the respiratory tract and lead to suffocation death.
Here are the signs of severe nosebleed:
Violent bleeding that does not stop.
Palpitation and a fast pulse.
shortness of breath and paleness.
If you are going to swallow the blood, it is hard to keep an eye on how much you actually bleed. Be aware of nausea as you get sick of swallowing too much blood. Often you also throw up, and even stools become completely black.