When you drop to 0 hit points, you either die outright or fall unconscious, as explained in the following sections.
Death Saving Throws
Whenever you start your turn with 0 hit points, you must make a special saving throw, called a death saving throw, to determine whether you creep closer to death or hang onto life. Unlike other saving throws, this one…
read more Dnd5e-SrdInstant Death
Massive damage can kill you instantly. When damage reduces you to 0 hit points and there is damage remaining, you die if the remaining damage equals or exceeds your hit point maximum.
read more Dnd5e-SrdMonsters and Death
Most GMs have a monster die the instant it drops to 0 hit points, rather than having it fall unconscious and make death saving throws.
read more Dnd5e-SrdStabilizing a Creature
The best way to save a creature with 0 hit points is to heal it. If healing is unavailable, the creature can at least be stabilized so that it isn’t killed by a failed death saving throw.
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