'''Basic Trope''': A nasty parasite leaves the body in a nasty way.
* '''Straight''': The alien erupts from Bob's chest.
* '''Exaggerated''':
** Bob explodes, leaving a brood of aliens squirming amid the gore.
** The escaping Alien has a parasite inside it that shortly thereafter bursts out of it. And the parasite has a parasite.
** A dozen aliens burst out of a dozen people's chests.
* '''Downplayed''':
** The alien slices a small hole in Bob's chest from the inside, then oozes out with minimal damage.
** OrificeEvacuation
* '''Justified''':
** The alien was going to make a less messy OrificeEvacuation, but then something in Bob's body made it leave in a hurry.
** The creature is too large to get out using any non-lethal route.
* '''Inverted''':
** An alien burrows into Bob's chest to make its home.
** Bob is [[RegretEatingMe eaten whole by an alien]] and bursts out of the alien's chest.
** Bob has a symbiotic relationship with the creature(s) living in his chest. He gives them a home and food, they basically function as a LovecraftianSuperpower.
** [[DarkIsNotEvil Lifeworms]] are squicky but helpful reversal - they enter grievous wounds and act as a substitute for the missing flesh and blood to save their lives - [[HeroicSacrifice giving up much of their body and possibly lives]] to save those in need.
* '''Subverted''': After having an alien embryo placed inside him, Bob clutches his chest and screams in agony, but he's just having a heart attack.
* '''Double Subverted''': Bob's heart attack turns out to be the result of the alien living inside him. *burst*
* '''Parodied''':
** Bob's chest has a door inexplicably built in, and the alien parasite leaves in a very civil manner. Then the parasite suffers a ChestBurster.
** The alien bursts out of Bob's chest...and [[Film/{{Spaceballs}} performs a high-stepping musical number]] before leaving.
* '''Zig Zagged''':
** An alien bursts out of Bob's chest, he successfully kills it and patches up the wound, and another alien bursts out of his chest a while later.
** The alien was injected improperly by it's parent: If it was implanted...[[BoldlyComing "properly",]] it would have been a mere pregnancy, as opposed to the intensely messy exit caused by this FaceFullOfAlienWingWong
* '''Averted''': The aliens in this story are not parasitic.
* '''Enforced''':
** "We need to make our aliens more terrifying. Let's have them burst out of their victims!"
** The aliens are IntelligentGerbil versions of Parasitoid Wasps.
* '''Lampshaded''': "Why do they always come out of the chest?"
* '''Invoked''': A MadScientist breds ''[[CanisLatinicus chestibursticus horriblis]]'' as a terror-inducing bioweapon.
* '''Exploited''': Bob hugs his archnemisis to his chest after he's infected, [[TakingYouWithMe knowing that the escaping creature will kill both him and his opponent.]]
* '''Defied''':
** Anyone discovered to be harboring an alien parasite is promptly killed and burned.
** Alternatively everyone in an area even remotely suspected to harbor one is dosed with a drug that kills the eggs if they get into their system.
* '''Discussed''': "If one of those beasties stings you, it's really laying eggs. So hold on to your ribs".
* '''Conversed''': "The aliens are [[ChestBurster chestbursters]]? Gross!"
* '''Implied''': "How do they reproduce? Trust me YouDoNotWantToKnow."
* '''Deconstructed''':
** The aliens purposely burst out of peoples' chests as a form of psychological warfare...
** Bob is really a WormThatWalks made of a colony of snake-like aliens, he's doing this to attack without revealing himself, or because he's in trouble and ejecting a single Worm is the only way he can escape without raising suspicion.
** The aliens [[SlaveToPR know of the bad PR that would be caused by them bursting out of human chests,]] and [[PragmaticVillainy instead settle for the alien equivalent of cows.]]
** The biology involved makes the idea very nonfeasible as a weapon. Anything slow is gross but not much of a threat. Anything fast growing runs out of available resources very quickly. At best it is very noticeable, kills the host in an hour and emerges near helpless from the corpse a week later.
* '''Reconstructed''':
** ...but it turns out the aliens need to burst out of ''something'' to survive in the outside world (much like a butterfly breaks out of its chrysalis to stimulate its wing muscles).
** Bob suffers form an KarmicDeath at the hands of his species' native parasite: a fungus that bursts out of the worms that make up his body, killing them one by one by one...
** [[DarkIsNotEvil While most members of the alien species are decent folk]], it's mentioned that the one attacking the crew is an AxCrazy serial rapist, and is [[ForTheEvulz deliberately seeking out humans to infect with it's seed.]]
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Back to ChestBurster
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%% Optional items, added after Conversed, at your discretion:
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%%* '''Implied''': ???
%%* '''Plotted A Good Waste''': ???
%%* '''Played For Laughs''': ???
%%* '''Played For Drama''': ???