- "...he knelt over Malfoy, drew his wand and traced it over the deep wounds Harry's curse had made, muttering an incantation that sounded almost like song. The flow of blood seemed to ease; Snape wiped the residue from Malfoy's face and repeated his spell. Now the wounds seemed to be knitting."
- — Description[src]
For maximum effect of the spell, the incantation had to be repeated thrice; firstly slowing the flow of blood to prevent death by exsanguination; the second to clear residue and begin to heal the wounds; and the third to fully knit the wounds, although dittany had to be applied to prevent scarring.
In 1997, when Draco Malfoy was attacked by Harry Potter using Sectumsempra, the damages inflicted were reversed by Severus Snape with this spell. He then took Malfoy to the Hospital Wing for further treatment, hoping to avoid scarring.
When Harry saw the damage inflicted onto Bill Weasley's face by the werewolf Fenrir Greyback after the Battle of the Astronomy Tower, he suggested to Madam Pomfrey to heal him with a charm, being influenced by seeing how Snape used this spell to heal Draco, until he was notified that cursed wounds cannot be healed by charms.
Behind the scenes
- In the book, after cursing Malfoy, Harry stayed in the sixth-floor boys' bathroom where the skirmish occurred, thus witnessed Snape's use of the spell; in the film, he ran straight to his common room.
- As Severus Snape invented Sectumsempra (and several others), for which this spell acts as the counter-curse for, it is possible that Snape is the inventor of this spell. However, this is unconfirmed, as Snape may have found this spell elsewhere, and this spell has also been possibly used by other wizards to heal injuries (which are also unconfirmed uses of this spell). This spell also does not appear on the infographic of spells invented by Snape on Pottermore, for which all of his other six spell creations appear.
- Harry Potter and the Goblet of Fire (Possible appearance)
- Harry Potter and the Half-Blood Prince (First appearance)
- Harry Potter and the Half-Blood Prince (film) (First identified as Vulnera Sanentur)
- LEGO Harry Potter: Years 5-7
- Harry Potter: Hogwarts Mystery (Mentioned only)
Notes and references
- Harry Potter and the Half-Blood Prince (film) - Chapter 20 (Sectumsempra)
- Harry Potter and the Half-Blood Prince, Chapter 24 (Sectumsempra)
- Harry Potter and the Deathly Hallows, Chapter 5 (Fallen Warrior)
- Harry Potter and the Half-Blood Prince, Chapter 29 (The Phoenix Lament)
- Harry Potter and the Goblet of Fire, Chapter 20 (The First Task)
- Harry Potter and the Half-Blood Prince, Chapter 27 (The Lightning-Struck Tower)
- vulnus on Wiktionary
- sanare on Wiktionary