Cauterization was the burning of a part of the body to remove or close off a part of it. Due to the intense heat generated by the blade, lightsaber strikes almost always flash-cauterized wounds, sealing instantly on impact.
However this is not always the case, as seen in A New Hope. When Ben uses his lightsaber to sever Ponda Baba's arm during a cantina fight in Mos Eisley, blood can be seen coming from the severed appendage.
- The Old Republic: Deceived
- Star Wars: Episode III Revenge of the Sith
- Dark Force Rising
- Children of the Jedi
- Shadow Games
- Cauterization on Wikipedia