Blood

Warning! At least some content in this article is derived from information featured in Harry Potter: Wizards Unite, Fantastic Beasts: The Crimes of Grindelwald, and Harry Potter: Hogwarts Mystery. As such, spoilers will be present within the article.

Blood is a liquefied substance in some organisms, like humans, that carries oxygen throughout the body. In some creatures, blood is known to possess magical qualities.

Blood in the Wizarding World

• Weakness payment requires blood to be shed.^[1]
• Blood pact involves the mixing of blood as part of a magical blood oath ritual.^[2]
• The blood of a unicorn will keep someone alive, even if they are "an inch from Death".^[3]
• Re'em blood gives the drinkers immense strength for a short period of time.^[4]
• Albus Dumbledore is known to have discovered the twelve uses of dragon blood.
• Some Creatures, like ghosts and inferi, have no blood, because they are dead.
• Chicken blood mixed with brandy is fed to baby dragons every half-hour.
• Some wizarding terms and nicknames use the word blood. They include:
  • Half-blood
  • Pure-blood
  • Mudblood
  • Half-Blood Prince
  • Bloody Baron
  • Blood Quill
  • Blood traitor
  • Blood status
  • Blood brothers
  • Bloody hell
• Severus Snape was known as the Half-Blood Prince and invented the curse Sectumsempra, which lacerates the target, causing it to shed much blood. This spell has only been used by two known wizards, including:
  • Harry Potter, in 1997, on Draco Malfoy, causing the latter to nearly bleed to death^[5] and the former later tried to use it on both the Inferi (which are bloodless)^[1] and Snape (who blocked the curse).^[6]
  • Snape, in 1997, on George Weasley. Though meaning to strike down a Death Eater, Snape accidentally severed George's ear off, during the Battle of the Seven Potters.^[7]
• The Blood-Replenishing Potion replenishes blood lost during an injury.^[8]
• Vampires are dark magical beings that are known to drink blood as their diet, that belong to the Living Dead.^[9] Some are known as blood brothers. Lady Carmilla Sanguina was a vampire who took things a step further and bathed in the blood of her victims, believing it would help her retain her health and beauty.^[10]
• Eldred Worple wrote a book known as Blood Brothers: My Life Amongst the Vampires.^[11]

• Honeydukes sells blood-flavoured lollipops, supposedly for vampires.^[12]
• Dolores Umbridge created and owned a quill that scarred whatever one wrote into one's Flesh, as a dark magical torture device.
  • In his fifth year, Harry was scarred by Umbridge's Blood Quill.^[13]
• Sometime into the eleventh century, the Baron became known as the "Bloody Baron", in the afterlife as a ghost, after he killed Helena Ravenclaw and became covered in her blood.^[14]

• In his first year at Hogwarts School of Witchcraft and Wizardry, Harry caught Quirinus Quirrell illegally killing unicorns and drinking their blood for Lord Voldemort.^[3]
• In 1992, Rubeus Hagrid thought that a Blood-Sucking Bugbear was killing his roosters, which had actually been killed by Ginny Weasley, being possessed by the fragmented soul of Tom Riddle.^[15]
• In 1995, the blood of Harry Potter helped in the Return of the Dark Lord.^[16]
• Voldemort's death, in 1998, was mostly because of Harry's blood in the Dark Lord's veins, making him unable to kill the young wizard.^[17]

Behind the scenes

• One of the chapters in Harry Potter and the Goblet of Fire is titled "Flesh, Blood and Bone".
• The title of the sixth Harry Potter book, film, video game, and soundtrack is Harry Potter and the Half-Blood Prince.

Appearances

• Harry Potter and the Philosopher's Stone (First appearance)
• Harry Potter and the Philosopher's Stone (film)
• Harry Potter and the Chamber of Secrets
• Harry Potter and the Chamber of Secrets (film)
• Harry Potter and the Prisoner of Azkaban
• Harry Potter and the Prisoner of Azkaban (film)
• Harry Potter and the Goblet of Fire
• Harry Potter and the Goblet of Fire (film)
• Harry Potter and the Order of the Phoenix
• Harry Potter and the Order of the Phoenix (film)
• Harry Potter and the Order of the Phoenix (video game)
• Harry Potter and the Half-Blood Prince
• Harry Potter and the Half-Blood Prince (film)
• Harry Potter and the Half-Blood Prince (video game)
• Harry Potter and the Deathly Hallows
• Harry Potter and the Deathly Hallows: Part 1
• Harry Potter and the Deathly Hallows: Part 2
• Fantastic Beasts: The Crimes of Grindelwald - The Original Screenplay
• Fantastic Beasts: The Crimes of Grindelwald
• Pottermore
• Harry Potter: Hogwarts Mystery (Mentioned only)
• Harry Potter: Wizards Unite

Notes and references