Police and search-and-rescue teams still use Bloodhounds to find fugitives and missing people, and that is mostly what the breed is known for. It follows the trail of one specific person across long distances and old trails.
The FCI registers the dog as the Chien de Saint-Hubert, a hound developed by monks in Belgium’s Ardennes.
Breed profiles quote a lifespan of 10 to 12 years. A 2024 analysis of UK dog data found a median survival of 9.3 years (McMillan et al., Scientific Reports, 2024), and gastric dilatation-volvulus, known as bloat, is the leading documented cause of death.
What Is a Bloodhound?
The American Kennel Club (AKC) describes the breed as better at finding lost or hiding people than any other creature.
At the AKC it sits in the Hound Group. The FCI files it under Group 6, scent hounds, as a large-sized hound, and registers it as the Chien de Saint-Hubert, Standard No. 84. Belgium is the country of origin, per the FCI.
The original job was large-game hunting by scent, following wounded game, and finding missing people in police work (FCI Standard No. 84, 2002). The FCI also makes the breed subject to a working trial.
The name also belongs to a British surface-to-air missile and an Apex Legends character. Neither one is covered here.
Where Did the Bloodhound Come From?
According to FCI Standard No. 84 (2002 English text), the breed descends from hounds bred by monks at the Abbaye de Saint-Hubert in the Ardennes, in present-day Belgium.
The Saint-Hubert hounds
The FCI traces the breed to black and black-and-tan pack hounds used in the 7th century by the monk Hubert, who became a bishop and, once canonized, the patron saint of hunters.
Hubert died in 727, and his remains were installed at the monastery in 825, after which abbey and town took his name (Wikipedia, Abbey of Saint-Hubert entry). His standing as patron saint of hunting made the abbey a known center of hound breeding.
The first hounds were black, with black and tan appearing later (FCI). They had a reputation for sturdiness and endurance, especially on wild boar.
Did William the Conqueror bring the breed to England?
Sources disagree, and the disagreement is about what arrived, not whether hounds crossed the Channel.
The FCI standard says William the Conqueror imported the dogs into England in the 11th century.
Wikipedia’s breed entry goes the other way. It calls the claim common but says no actual evidence supports it, and it places the first English written references to Bloodhounds in the early to mid-14th century.
The same entry treats Norman hounds in England as near certain. Whether they were Bloodhounds or only ancestors of the breed probably cannot be settled from surviving evidence.
So ancestors in 1066 is a defensible claim, while the Bloodhound by name in 1066 is not something the record documents.
Why the breed is called a Bloodhound
Nobody agrees on where the name came from.
The FCI standard derives it from “blooded hound,” a hound of pure blood, and that reading is common in breed literature.
Historians point out that the word “bloodhound” is recorded from about 1330, before “blooded” was used for good breeding, and that the older explanation is a “hound for blood,” one that follows the trail of a wounded animal. John Caius gave that explanation in the 16th century.
The Belgian original faded, the English line survived
The Canadian Kennel Club standard (effective January 2011) calls the Bloodhound the oldest scent hound as known today and says later scent hounds were bred with it as the base.
Wikipedia’s summary of the historical literature adds a twist. The original Saint-Hubert strain died out in the 19th century, and the continental Saint-Hubert owes its present existence to the Bloodhound developed in England.
The Canadian Kennel Club recognized the breed in 1892 and the United Kennel Club in 1914. The FCI took until 12 August 1960 for definitive acceptance.
Bloodhound Size, Coat and Appearance
Breed standards describe an average adult male at 26 inches (66 cm) and 90 pounds (41 kg), and an average adult female at 24 inches (61 cm) and 80 pounds (36 kg).
Weights of up to 110 pounds for males and 100 pounds for females are accepted, and the larger hounds are preferred when proportion and balance hold (The Kennel Club, standard updated 1 April 2025).
Height and weight by registry
| Standard | Adult dogs | Adult bitches |
|---|---|---|
| AKC | 26 in, 90 lb average, up to 110 lb | 24 in, 80 lb average, up to 100 lb |
| The Kennel Club (UK, 2025) | 66 cm (26 in), 41 kg (90 lb), up to 50 kg (110 lb) | 61 cm (24 in), 36 kg (80 lb), up to 45.5 kg (100 lb) |
| ANKC (2009) | 66 cm (26 in), 41 kg (90 lb), up to 50 kg (110 lb) | 61 cm (24 in), 36 kg (80 lb), up to 45.5 kg (100 lb) |
| UKC (2009) | 26 in, 90 lb average, up to 110 lb | 24 in, 80 lb average, up to 100 lb |
Four registries print the same figures. Showsight Magazine notes the standard originated in England, and that shared origin is why the numbers match.
The Kennel Club adds that its measurements describe the ideal, and an individual dog can run larger or smaller.
Coat and colors
The coat is short and flat (Hill’s Pet). Dogs NSW’s 2009 standard lists black and tan, liver and tan, or red, and under the UKC standard (2009) any other color is a disqualification.
Wikipedia’s breed entry attributes the pattern variation to three alleles of the agouti gene, citing a genetics study.
Wrinkles, ears and eyes
The AKC says the droopy ears and wrinkled jowls trap scent while the dog works with its nose down (AKC, 2024).
No controlled study turned up that tests this explanation, so it stays a handler observation.
Eyes are a separate matter. The Kennel Club standard (2025) calls for medium-sized eyes, neither sunken nor prominent, which differs from the sunken-eyed look some breed profiles describe.
How a Bloodhound’s Nose Works
Sniffed air goes to a large receptor-lined chamber at the back of the nose. The receptors bind odor molecules, and the dog then matches that pattern against the scent article it was given.
Receptor counts and where they come from
The AKC (2024) says most breeds average 100 million scent receptors and Bloodhounds have at least double. PBS Nature gives about 230 million olfactory cells, 40 times the human count. Breed profiles say 300 million, repeated across many pages with no study cited.
None of those numbers points to a study that counted Bloodhound receptor cells.
The peer-reviewed numbers are gene counts. Quignon and colleagues found 1,094 olfactory receptor genes in the dog, about 20% of them pseudogenes, against roughly 900 genes in humans with 63% pseudogenes (Genome Biology, 2003 and 2005).
Airflow and the olfactory recess
Sniffing changes where the air goes.
In the dog, sniffed air is shunted to the olfactory recess at the rear of the nasal cavity, while breathing air takes a separate path below it (Craven and colleagues, Journal of the Royal Society Interface, 2010).
The recess holds scroll-shaped ethmoturbinates lined with olfactory epithelium, which is where the receptor surface area sits.
That airflow work covers dogs in general. The sources retrieved report no Bloodhound-specific measurements.
How the trail reaches the nose
A scent article touched only by the target person gives the dog its reference odor. The dog works on a long line attached to a harness.
The trail itself is skin rafts, breath and sweat vapor (PBS Nature). Skin rafts are dead or dying cells that shed naturally from the body (AKC, 2024).
Once the dog locks onto a trail, PBS Nature reports it keeps to that trail despite competing odors until it finds the person or the trail ends.
How Far and How Old a Trail Can a Bloodhound Follow?
Sources put routine police and competition work at 24 to 36 hours, ideal conditions at up to two weeks, and one documented trail at 322 hours.
Distance claims reach 130 miles, but none of the retrieved sources cite a controlled test behind that figure.
| Source | Figure | Basis |
|---|---|---|
| AKC (2024) | Up to 36 hours (advanced mantrailing). 1 to 5 hours, up to 1,000 yards (AKC tracking) | Competition rules |
| Saxony police exam (Woidtke, 2016) | 24 to 36 hours, 1.24 to 1.55 miles | Certification standard for trailing dogs |
| Albrecht, Missing Animal Response Network (2019) | Up to 2 weeks in cool, damp, windless conditions | Handler estimate from casework |
| Brey and Reed, The Complete Bloodhound | 322 hours (13 days) | One documented case |
| PBS Nature | Over 300 hours, over 130 miles | Reported, no trial cited |
Why the published figures disagree
They measure different things. Event rules, exam standards, expert estimates and a single case all end up side by side as if they were the same kind of number.
A trial ceiling of 36 hours says what organizers test, not where a dog stops.
The PBS figure of more than 300 hours lines up with the 322-hour case, so one record may be circulating as a typical result.
Harvey and Harvey opened their 2003 paper in the Journal of Forensic Sciences by noting that Bloodhound trailing claims rested on anecdotal evidence and legend.
Albrecht also flags claims of months-old trails as exaggerated. Her organization notes that trailing dogs handled by volunteers and police have followed trails under two weeks old for decades.
A 13-day trail on record
Handler Norman Wilson worked three Bloodhounds, Doc Holiday, Queen Guinevere and Big Nose Kate, on the trail of three missing hikers in the wet, dense forests of Western Oregon.
The trail was 322 hours old, and the dogs led him to the hikers’ bodies, according to The Complete Bloodhound by Catherine Brey and Lena Reed, as excerpted by the Missing Animal Response Network.
Cool, damp conditions and heavy vegetation are where scent lasts longest. Treat the case as a ceiling, not a benchmark.
Conditions that shorten a trail
- Hot, dry conditions disperse scent, and direct sunlight dries the vapors quickly.
- Wind carries scent great distances and thins the trail.
- Heavy rain on pavement disperses scent, which then clings in gutters and puddles instead of along the path walked.
- Little scent remains on a sidewalk after four days, though it can persist on damp grass and in shade.
- Congested areas and extra runners make the hardest mantrailing trials (AKC, 2024).
- When the person switches from foot to car, the handler has to recognize it. The Saxony exam tests this with trails of at least 220 yards.
The best case is a cool, damp morning with no wind and shaded vegetation (Missing Animal Response Network).
What Jobs Do Bloodhounds Do?
Bloodhounds work as police and search-and-rescue trailing dogs. They follow one person’s trail to find fugitives and missing people, children and adults with Alzheimer’s included.
Where Bloodhound teams work
In law enforcement, one Pennsylvania handler told the AKC (2024) that her Bloodhound’s solid indications have led to numerous search warrants, arrests and convictions. The AKC’s breed history (2024) says Bloodhounds have also uncovered evidence.
Search and rescue covers missing children and people with Alzheimer’s (AKC, 2024).
For competition, the American Bloodhound Club offers three trailing titles, open only to AKC-registered Bloodhounds.
Other breeds work trails too. The AKC (2024) names Pointers, Belgian Malinois and German Shepherds among them.
Two cases that built the reputation
In 1909 in Kentucky, a Bloodhound named Nick Carter and handler Captain G.V. Mullikin were called to a barn that had burned down more than 100 hours earlier. AKC accounts differ on the quarry. Its 2024 breed history says the dog located two convicted killers, while an earlier AKC article says he led Mullikin to the man responsible for the arson at a farmhouse about a mile away.
In 1977 in Tennessee, Bloodhounds tracked James Earl Ray after he escaped from Brushy Mountain prison, where helicopters and electronic searching had run for more than two days. The AKC’s 2024 history names the hounds Missy and her littermate J. Edgar, but the Associated Press reported at the time that Ray was run down after 54 hours by two bloodhounds named Sandy and Little Red.
Accounts of both cases differ from source to source and cite no court records, so treat the details as reported lore.
Is Bloodhound trailing evidence admissible in court?
Often, but never on its own.
Breed pages overstate it. Purina UK says a Bloodhound’s evidence cannot be challenged in many US states, and the case law says otherwise.
In Buck v. State (Oklahoma Court of Criminal Appeals, 1943), trailing evidence came in only as a circumstance corroborating other testimony, after a showing that the dog was trained on human trails and tested for accuracy.
California’s Court of Appeal in People v. Malgren (1983) called admission with a proper foundation the majority view. It added that courts agree dog-tracking evidence alone cannot support a conviction.
The FBI’s Forensic Science Communications (October 2004) described Bloodhound trailing as accepted in most courts, citing Harvey and Harvey (2003) as validation.
Breed is not the test. North Carolina’s judicial benchbook (UNC School of Government) says a court accepted tracking by a Doberman and a Rottweiler once the foundation was met, and a 2023 review in Forensic Science International: Synergy calls the old rule that only certain breeds can track reliably scientifically unsupported.
What Is a Bloodhound’s Temperament Like, and How Hard Is It to Train?
Gentle and affectionate at home with people and other dogs, stubborn and hard to recall once a scent takes over. That combination makes it a poor first dog.
Temperament
The Kennel Club standard calls the breed affectionate and not quarrelsome with other dogs, and the UKC standard (2009) describes it as gentle, placid and attached to its owner.
The AKC says an off-duty Bloodhound is among the most docile dogs but turns relentless and stubborn once it is trailing.
There is a sensitive side too. The Kennel Club standard says somewhat reserved and sensitive, and PDSA says nervous at times, so early socialization with many people, dogs and places matters. Judges’ monitoring forms back this up. Nervous temperament appeared among the points of concern recorded for Bloodhounds shown from 2016 to 2018, according to the Kennel Club’s 2019 breed health plan.
Hill’s Pet lists baying, howling and whining as normal expression.
Training a scent-driven hound
PDSA calls Bloodhounds sensitive dogs that respond well to reward-based training started early, and warns they can be wilful.
Purina UK is blunter. The breed has little interest in any training that does not involve its nose.
- Start reward-based training in the first weeks.
- Build the rewards around scent, with trails, scent games and scent sports such as AKC Scent Work.
- Expect a rough adolescence, with boisterous, clumsy behavior and a taste for anything that smells interesting (Hill’s Pet).
- Keep the dog on a leash outside secure fencing, because a strong scent overrides commands (Hill’s Pet).
- Accredited classes give extra guidance (PDSA).
Use small, healthy dog treats for everyday cues and save the nose work for the big payoff.
Bloodhounds compete in tracking, rally, agility, lure coursing and conformation too. Former American Bloodhound Club president Adriana Pavlinovic told the AKC (2024) that patient, positive training opens up all of it, but “the nose rules this breed.”
How Long Do Bloodhounds Live, and What Health Problems Do They Have?
Bloodhounds live a median of 9.3 years in a 2024 analysis of UK dog data drawn from breed registries, vets, insurers and charities, short of the 10 to 12 years many breed profiles quote.
Bloat is the leading documented cause of death, with cancer second.
The 9.3 year median comes with a 95% confidence interval of 8.6 to 11.0 years, based on 134 Bloodhounds of which 71 had died (McMillan et al., Scientific Reports, 2024; Dogs Trust breed table). Breed profiles elsewhere range from under 10 years (PDSA) to 12 to 15 years (Dogs NZ).
Bloat accounted for 34.1% of 82 reported deaths, or 28 dogs (Kennel Club 2004 survey, in the 2019 breed health plan).
On joints, 41.5% of 41 Bloodhounds scored since 1998 had elbow dysplasia (BVA/Kennel Club scheme, in the 2019 breed health plan). The elbow sample is small and voluntary, so it shows direction, not prevalence.
Bloat (GDV) and how to lower the risk
Gastric dilatation-volvulus (GDV) happens when the stomach fills with gas and fluid and then twists. That cuts off blood flow and kills quickly without surgery.
In a prospective study of large and giant breeds, Glickman and colleagues found the Bloodhound had the second-highest GDV incidence, behind the Great Dane (JAVMA, 2000, as summarized in Bell’s 2014 review).
Risk climbs with age, a first-degree relative that bloated, a lean body and a nervous temperament (Bell, Topics in Companion Animal Medicine, 2014).
Nothing eliminates it, but a few habits help.
- Split the daily food into two or more meals. Bell’s review found the highest risk in dogs fed one large meal a day.
- Feed from the floor. Glickman’s 2000 study linked raised bowls to higher risk, and a Veterinary Evidence review found no study showing a raised bowl lowers it.
- Watch eating speed, knowing the evidence is split. Fast eating raised risk in large breeds but not giant breeds in Glickman’s study, and a Bloodhound’s standard weight straddles that size cutoff.
- Keep hard exercise away from mealtimes. PDSA advises a gap between eating and exercise, though Bell notes one survey found moderate activity helpful.
- Learn the signs, which are a swollen, painful abdomen, unproductive retching, heavy drooling and shock (Mississippi State College of Veterinary Medicine, 2019).
- Go to an emergency hospital at once if you see them, because the Animal Medical Center says bloat cannot be managed at home.
If a dog gulps, a slow feeder bowl is the usual fix, but the eating-speed evidence is mixed enough that it counts as a low-risk habit, not a proven safeguard.
Gastropexy tacks the stomach to the body wall. It does not stop gas building up, but it prevents the twist (Animal Medical Center, 2022).
Effective gastropexy cuts GDV recurrence from as high as 80% to under 5% (Topics in Companion Animal Medicine, 2014). That figure comes from dogs that already bloated, and the American College of Veterinary Surgeons notes many surgeons now recommend prophylactic gastropexy for at-risk breeds.
Ear, eye, skin and joint conditions
Ears cause the most day-to-day trouble. The Merck Veterinary Manual lists pendulous ear flaps and excess moisture as predisposing factors for ear canal inflammation, and a UK VetCompass study (Canine Medicine and Genetics, 2021) found pendulous-eared breeds at higher risk than erect-eared ones. In a 2013 breed-club survey, ear infection tied with bloat as the most reported reason for veterinary treatment.
Ectropion (lids sag outward) and entropion (lids roll inward) lead the eye list. US examination data in the breed health plan show both less common in 2010 to 2018 than in earlier periods, and UK breed clubs have graded eyelids from 0 to 3 since 1992.
PDSA lists skin fold dermatitis and atopy, and says the breed has very sensitive skin.
Developmental hip dysplasia led the settled conditions in Agria UK insurance data for July 2017 to June 2018, though the Kennel Club cautions that one dog can account for several settlements.
The Bloodhound sits on Schedule B of the BVA/Kennel Club/ISDS eye scheme, which means inheritance of multiple ocular defects is suspected, not proven.
It is also a Category Three breed under Kennel Club Breed Watch, which makes judges’ health monitoring forms mandatory. PDSA ties that status to the loose skin around the eyes, which can infect easily or affect sight.
What Daily Care Does a Bloodhound Need?
Long sniffing walks, a weekly brush, regular ear and skin fold checks, and a garden no one can squeeze out of.
Exercise and sniffing time
PDSA sets a minimum of two hours a day in several walks, plus scent games and puzzle toys. Purina UK also says two-plus hours, with sniffing time instead of mindless walking.
Hill’s Pet is the outlier at 20 to 40 minutes a day, even though the same page calls the breed energetic and in need of lots of exercise.
I’d plan for the higher figure. It fits PDSA’s warning that a bored Bloodhound turns destructive.
Puppies need less. VetWest advises against over-exercising Bloodhound puppies in their first year so joints and bones can grow properly.
Ears, skin folds and coat
Brush the short coat weekly. It sheds year-round, though less than longer coats (PDSA).
Skin folds need to stay clean and dry, and PDSA says to ask a vet before buying shampoo.
Dry the ears after baths and swimming, because moisture is a predisposing factor for infection (Merck Veterinary Manual). Check them regularly for redness, odor and head-shaking.
The UK VetCompass authors (Canine Medicine and Genetics, 2021) advise caution with ear care. That means a dry paper cloth, judicious use of antimicrobial cleaners, and no overzealous cleaning.
If you prefer wipes to a cloth, pick gentle ear wipes your vet approves.
Home setup: fencing, drool and time alone
Bloodhounds fit through surprisingly small gaps, and PDSA calls a secure garden a must.
The breed drools heavily and is not for house-proud owners (PDSA), so keep a cloth by the door.
Never leave one alone for more than four hours, per PDSA, which also says the breed is not known for separation anxiety.
Food is simple. PDSA recommends a complete, balanced diet in two meals, with treats counted in the daily allowance.
Is a Bloodhound the Right Dog for You, and What Does One Cost?
It suits an experienced, active owner with a secure garden and a high tolerance for drool. First-time owners, homes with toddlers and households with small pets will probably have a harder time.
Pros and cons of owning a Bloodhound
The good side is real. Bloodhounds are gentle with children and other dogs (UKC standard, PDSA), affectionate, attached to their families, and not known for separation anxiety (PDSA). The short coat only needs weekly brushing, and trailing and scent sports give the nose somewhere to go.
The downsides are bigger than most profiles let on.
- A minimum of two hours of exercise a day (PDSA)
- Heavy drool and a distinctive smell
- A median lifespan of 9.3 years and a real bloat risk
- Weak recall, plus a talent for escaping
- Too large for homes with toddlers, who can be knocked over (PDSA)
- A high prey drive, which makes small pets a poor match (PDSA)
What a Bloodhound costs
Keeping a dog is expensive anywhere, and PDSA’s UK figure for the breed is a floor.
PDSA puts a Bloodhound at a minimum of GBP 80 a month after purchase and set-up, and over GBP 13,000 across its lifetime.
Vet bills or insurance, training and boarding sit on top. No published market survey of Bloodhound puppy prices turned up, and pet sites quote ranges that disagree, so ask breeders for a written price and what it includes.
PDSA also warns that unusually cheap puppies can come from puppy farms, and that adopting an adult from a rescue can cost less.
Finding a breeder or a rescue
Ask for hip and elbow scores, an eye examination and, where offered, a heart check for both parents.
Bloat has no screening test and no breed DNA test, so ask whether relatives bloated (Bell, 2014; Kennel Club breed health plan, 2019).
PDSA recommends Kennel Club Assured Breeders, but the June 2019 breed health plan lists no Bloodhound-specific requirements under the scheme, so verify the tests yourself.
The UK Bloodhound Health Award Scheme runs from Bronze, a veterinary health certificate, to Platinum, which adds working trials and a show assessment. Few awards had been issued by May 2019.
For a rescue, ask about the dog’s history, and look for breed-specific groups such as West Coast Bloodhound Rescue (Chewy breed guide).
The Association of Bloodhound Breeders ran a 2013 breed health survey and maintains a dedicated breed health website, which makes it a useful reference when you question a breeder.
Bloodhound FAQ
Is a Bloodhound the same as a Basset Hound?
No, they are separate breeds that share scent-hound ancestry.
The Basset Hound is a short-legged breed, and Everett Millais crossed a Basset with a Bloodhound bitch in the 1890s to build a heavier English type (Wikipedia).
Do Bloodhounds make good guard dogs?
No. PDSA calls them poor guard dogs because they enjoy company, and VetWest says their size does not change that.
Dogs NZ disagrees and calls the breed a good watchdog, so expect a loud alert, not protection.
Do Bloodhounds bark or howl a lot?
Not constantly. PDSA describes a loud, deep bark used mainly when the dog is bored, wants attention or senses something unusual.
For excessive noise, PDSA recommends an accredited behaviourist.
Do Bloodhounds smell bad?
Yes, they carry a distinctive odor. PDSA says it takes some getting used to, and Purina advises regular bathing to keep it down.
That advice clashes with PDSA’s note that the skin is very sensitive, so ask your vet how often to bathe.
Can Bloodhounds live with cats and other dogs?
Yes with other dogs when socialized early, while cats depend on the individual.
PDSA says a Bloodhound raised with a cat may tolerate it under supervision, and the FCI standard describes the breed as tolerant of other domestic animals.
What to Have in Place Before a Bloodhound Comes Home
Before the first night, know the route to an emergency veterinary hospital and drive it once. Then check the fence for gaps and settle on a feeding schedule.
That order runs from fastest failure to slowest. Bloat is an acute, life-threatening emergency (Mississippi State College of Veterinary Medicine, 2019). An escape ends with a lost dog. Feeding habits only shift risk gradually.
Picking among puppy food brands comes after the schedule is fixed.
The advice on questions for breeders holds as of October 2026. It changes if the Kennel Club adds Bloodhound requirements to its Assured Breeder Scheme, which the June 2019 breed health plan did not include.
