St Mungo's Hospital for Magical Maladies and Injuries

• Type: Hospital
• Location: London, England, disguised as a derelict department store named Purge and Dowse Ltd.
• Owner/Residents: Founded by Mungo Bonham and staffed by Healers. Notable permanent patients include Frank Longbottom, Alice Longbottom, and Gilderoy Lockhart.
• Key Features: Hidden entrance accessible only to witches and wizards by speaking to a mannequin; lime-green robed staff with a bone-and-wand emblem; specialized wards for different categories of magical ailments.

St Mungo's Hospital for Magical Maladies and Injuries is the primary, and likely only, wizarding hospital in Great Britain. It was founded in the late 1500s or early 1600s by the famous Healer, Mungo Bonham. The hospital's emblem is a wand crossed with a bone. Its public-facing facade is Purge and Dowse Ltd., a red-brick department store with a shabby and abandoned appearance designed to repel Muggles. To gain entry, a visitor must approach a specific mannequin in the front window and state their purpose. The visitor is then able to walk directly through the display glass, which ripples like water, into the hospital's reception area. The reception is a chaotic and crowded hall, described as a cross between a casualty department and a busy station. It is filled with magical folk suffering from a wide variety of bizarre and often comical injuries. A Welcome Witch sits at an enquiries desk to direct patients and visitors. The staff, known as Healers, are easily identified by their signature lime-green robes. Despite the chaotic entrance, the wards themselves are generally neat, clean, and orderly, with Healers providing professional care for ailments ranging from simple potion mishaps to permanent spell damage.

St Mungo's is a key location in Harry Potter and the Order of the Phoenix. Arthur Weasley is brought here for treatment after being savagely attacked by Nagini, Lord Voldemort's snake, while guarding the Department of Mysteries. Harry Potter, Hermione Granger, and the Weasleys visit him over the Christmas holidays. During one of these visits, Harry, Ron Weasley, and Hermione accidentally encounter Neville Longbottom, who is visiting his parents, Frank Longbottom and Alice Longbottom. They are permanent residents of the Janus Thickey Ward, having been tortured into insanity with the Cruciatus Curse by Death Eaters, including Bellatrix Lestrange. The group also finds their former Defence Against the Dark Arts professor, Gilderoy Lockhart, who is still suffering from the amnesia inflicted by a backfiring Memory Charm. The hospital is also the site of an assassination. Broderick Bode, a Ministry of Magic Unspeakable, is murdered while recovering in a ward when a Death Eater sends him a Devil's Snare disguised as a potted plant. St Mungo's is mentioned at other times as well. Minerva McGonagall is sent there to recover after being hit by four simultaneous Stunning Spells, and Katie Bell is treated there after coming into contact with a cursed opal necklace in Harry Potter and the Half-Blood Prince.

The hospital is organized by floor, with each floor dedicated to a specific type of magical malady.

• Ground Floor: Artefact Accidents
  • Includes Reception and handles injuries from cauldron explosions, wand backfiring, and broomstick crashes.
• First Floor: Creature-Induced Injuries
  • Handles bites, stings, burns, and embedded spines from magical creatures. This floor contains the “Dangerous” Dai Llewellyn Ward for Serious Bites, where Arthur Weasley was treated.
• Second Floor: Magical Bugs
  • A ward for contagious maladies like Dragon Pox, Scrofugulus, and Vanishing Sickness.
• Third Floor: Potion and Plant Poisoning
  • Treats rashes, regurgitation, and uncontrollable giggling caused by potions and magical plants.
• Fourth Floor: Spell Damage
  • Cares for patients suffering from unliftable jinxes, hexes, and incorrectly applied charms. This floor contains the Janus Thickey Ward for Permanent Spell Damage, where the Longbottoms and Gilderoy Lockhart reside.
• Fifth Floor: Visitor's Tearoom and Hospital Shop
  • A place for visitors to relax and purchase gifts or refreshments.

• Etymology: The hospital is likely named after Saint Mungo, the patron saint of Glasgow, Scotland. He was reputed to have performed four religious miracles, including healing, which aligns with the hospital's purpose.
• Founder: While Mungo Bonham is named as the founder in the books, J.K. Rowling provided more details on Pottermore, stating he was a 16th-century Healer who established the hospital. (Pottermore)
• Film Adaptations: St Mungo's Hospital is entirely absent from the film adaptation of Harry Potter and the Order of the Phoenix. The scene where Harry and his friends discover the truth about Neville's parents is moved to the Room of Requirement at Hogwarts. (film)