eli5 In movies and video games and stuff, characters get stabbed in the gut all the time and this usually causes them to puke up blood instantly. People have told me this is realistic and have tried to explain how it happens but I never get it. How does a stab cause blood to come out of their mouth?
In: Biology
Your stomach gets punctured and fills with blood. Usually a stab wound releases a lot of blood internally with veins and arteries being cut. Things inside your body are usually pretty well contained, but once things get cut, blood can flood anywhere.
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Swallowing blood will make you puke. Very fun, try it. If the stomach gets blood in it, from itself being cut, or blood coming in from above or below, it will make you puke.
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It isn’t realistic at all. It would be very rare for you to get stabbed in a way that causes significant bleeding, and for that blood to end up inside the airways or intestines, which is what it would have to do to get you to throw or cough it up. You might get small amounts, which you would cough up with mucus and saliva, but this wouldn’t look like the pure blood you see in movies. Stab wounds in the major vessels around the lungs/throat/intestines would bleed into the chest, on the ground, or in the abdomen. I have never seen it happen like it does in movies.
Source: surgeon who has done lots of trauma work
To be exact in order to puke up blood the wound would have to open a hole in the stomach/lungs or at the very least the airway/esophagus. One a hole in made in one of those areas your body will try to expel the blood just as it would something like water or the like.
worst scene in movie I saw was when somebody’s toe was stabbed and guy poke blood like wtf lol
Someone stabs me in the gut? My stomach has ruptured and blood is filling it rapidly. You are now regurgitating or puking blood.
Someone stabs me in the chest? A lung is ruptured and/or collapsed, as well as rapidly filling with blood. Your lungs dont like having liquids in them, so youll start coughing up blood.
There are myriad ways it can happen, but it generally goes like this: blood somewhere it shouldnt be is bad. It must be removed.
I should imagine it internally bleeds into the victims stomach and out the mouth as a result
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