The Shar Pei () is a

dog breed A dog breed is a particular type of dog that was purposefully bred by humans to perform specific tasks, such as herding, hunting, and guarding. Dogs are the most variable mammal on Earth, with artificial selection producing upward of 360 globall ...

from

southern China Northern China () and Southern China () are two approximate regions that display certain differences in terms of their geography, demographics, economy, and culture. Extent The Qinling–Daba Mountains serve as the transition zone between ...

. Traditionally kept as a property guardian, the shar pei was driven to the brink of extinction in the 20th century. The breed is known in the West for its deep

wrinkles A wrinkle, also known as a rhytid, is a fold, ridge or crease in an otherwise smooth surface, such as on skin or fabric. Skin wrinkles typically appear as a result of ageing processes such as glycation, habitual sleeping positions, loss of bo ...

, while a traditional less wrinkled form is maintained in

Hong Kong Hong Kong)., Legally Hong Kong, China in international treaties and organizations. is a special administrative region of China. With 7.5 million residents in a territory, Hong Kong is the fourth most densely populated region in the wor ...

History

There are no records indicating the origins of the shar pei, although it closely resembles effigies of an un-wrinkled type of

guard dog A guard dog or watchdog is a dog used to watch for and guard people or property against unwanted human or animal intruders. A dog trained to attack intruders is known as an attack dog. History Dogs have been used as guardians since ancient ...

kept in southern China during the

Han dynasty The Han dynasty was an Dynasties of China, imperial dynasty of China (202 BC9 AD, 25–220 AD) established by Liu Bang and ruled by the House of Liu. The dynasty was preceded by the short-lived Qin dynasty (221–206 BC ...

; some believe the modern breed, along with the

chow chow The Chow Chow is a spitz-type of dog breed originally from Northern China. The Chow Chow is a sturdily built dog, square in profile, with a broad skull and small, triangular, erect ears with rounded tips. The breed is known for a very dense do ...

, descends from these dogs. The breed has been identified as a basal breed that predates the emergence of the modern breeds in the 19th century. The shar pei was once very popular, but war and political turmoil in China in the 20th century took its toll on the breed and by the 1970s it was close to extinction. In 1973 a Hong Kong businessman named Matgo Law appealed to the international community, in particular the

American Kennel Club The American Kennel Club (AKC) is a 501(c)(4) nonprofit breed registry, registry of purebred dog pedigree (animal), pedigrees in the United States. In addition to maintaining its pedigree registry, this kennel club also promotes and sanctions eve ...

, to help save the breed; by 1978 the breed was named by ''

The Guinness Book of Records ''Guinness World Records'', known from its inception in 1955 until 1999 as ''The Guinness Book of Records'' and in previous United States editions as ''The Guinness Book of World Records'', is a British reference book published annually, listi ...

'' as the world's rarest breed, with only 60 remaining. The resultant publicity led to great demand in the United States for examples of the breed, and unscrupulous breeders in Hong Kong,

Macau Macau or Macao is a special administrative regions of China, special administrative region of the People's Republic of China (PRC). With a population of about people and a land area of , it is the most List of countries and dependencies by p ...

and

Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia. The main geography of Taiwan, island of Taiwan, also known as ''Formosa'', lies between the East China Sea, East and South China Seas in the northwestern Pacific Ocea ...

took to crossing their remaining purebred animals with other breeds including the bull terrier,

pug The Pug is a breed of dog with the physically distinctive features of a wrinkly, short-muzzled face, and curled tail. An ancient breed, with roots dating back to 400 B.C., they have a fine, glossy coat that comes in a variety of colors, most ...

and

bulldog The Bulldog is a British breed of dog of mastiff type. It may also be known as the English Bulldog or British Bulldog. It is a stocky, muscular dog of medium size, with a large head, thick folds of skin around the face and shoulders and a rel ...

, and selling the offspring to unwitting American buyers. The results of the crossings led to a dog with a much fleshier mouth than the original breed, these dogs became known as "meat-mouth" shar peis, while the original dogs are called "bone-mouth" shar peis. The cause of saving the breed was taken up in the United States by enthusiastic breeders using the dogs smuggled there in the 1970s, a breed club was founded and it received American Kennel Club recognition in 1992, with breed standard specifying a meat-mouth type dog. Some breeders in Hong Kong maintain the traditional bone-mouth type, although it is estimated only 50 to 100 examples of this type remain. In the United States, a number of breeders have selectively bred shar peis for a smaller size, creating what they call the "miniature shar pei", much to the opposition of many breeders of traditionally sized shar peis. Standing to a maximum , the miniature shar pei is bred for both for its smaller size and increased wrinkles.

Description

The shar pei is a short-coated medium-sized breed of dog, renowned for its excessively wrinkled skin. The breed resembles many dog breeds from the

mastiff A mastiff is a large and powerful Dog type, type of dog. Mastiffs are among the largest dogs, and typically have a short Coat (dog), coat, a long low-set tail and large feet; the skull is large and bulky, the muzzle broad and short (brachycephal ...

family; however, it is most closely related to

spitz A spitz (; , in reference to the pointed muzzle) is a Dog type, type of domestic dog consisting of between 50 and 70 breeds depending on classification. There is no precise definition of 'spitz' but typically most spitz breeds have pricked ears ...

breeds, with the chow chow being its closest relative. This is most clearly seen with the two breeds both possessing unique blue-black tongues. This dog falls within the same genetic group as the chow-chow, the akita, the

shiba inu The is a breed of hunting dog from Japan. A small-to-medium breed, it is the smallest of the six original dog breeds native to Japan. The Shiba Inu was originally bred for hunting. Its name literally translates to "brushwood dog", as it is us ...

, the

malamute The Alaskan Malamute () is a large dog breed, breed of dog that was originally bred for its strength and endurance, to haul heavy freight as a sled dog. It is similar to other arctic breeds such as the husky, the spitz, the Greenland Dog, Canad ...

and the

Greenland dog The Greenland Dog ( Greenlandic: ''Kalaallit Qimmiat'', Danish: ''Grønlandshund'') is a large breed of husky-type dog kept as a sled dog. They were brought from Siberia to North America by the Thule people 1,000 years ago, along with the Ca ...

. Adult shar peis typically stand between and weigh between , they have a short, very harsh coat that can be any solid colour except white, although black, red, fawn and cream are the most common. The Chinese breed standard states they have clam-shell ears, butterfly nose, melon-shaped head, grandmotherly face, water buffalo neck, horse's buttocks and dragon's legs. The breed's head is relatively large compared to its body with a broad muzzle that usually darker than the rest of the coat and well padded causing a bulge at its base, the ears are set wide apart and are small and triangular, and the eyes are set very deeply into the folds of skin on the head. The breed has straight, well boned, muscular legs below sloping shoulders and a medium length broad tail that is curled over their back in a manner typical of spitz-type dogs.

Health

Life expectancy

A 2024 study in the UK found a life expectancy of 10.6 years for the breed compared to an average of 12.7 for purebreeds and 12 for

crossbreeds A crossbreed is an organism with purebred parents of two different breeds, varieties, or populations. A domestic animal of unknown ancestry, where the breed status of only one parent or grandparent is known, may also be called a crossbreed though ...

Skin conditions

A review of over 23,000 records from the University Veterinary Teaching Hospital of the

University of Sydney The University of Sydney (USYD) is a public university, public research university in Sydney, Australia. Founded in 1850, it is the oldest university in both Australia and Oceania. One of Australia's six sandstone universities, it was one of the ...

found 7.7% of Shar-peis to have

atopic dermatitis Atopic dermatitis (AD), also known as atopic eczema, is a long-term type of inflammation of the skin. Atopic dermatitis is also often called simply eczema but the same term is also used to refer to dermatitis, the larger group of skin conditi ...

, higher than the overall of 3.1%. A review of records from over 600 US hospitals found 4% of Shar-peis under the age of 2 to suffer from juvenile onset

demodicosis Demodicosis , also called Demodex folliculitis in humans and demodectic mange () or red mange in animals, is caused by a sensitivity to and overpopulation of ''Demodex'' as the host's immune system is unable to keep the mites under control. '' ...

compared to just 0.58% overall. A study in the UK found the Shar-pei to have an overall prevalence of 0.9% compared to 0.17% for the general population. For juvenile onset demodicosis (under 2 years) the Shar-pei had a prevalence of 1.8% compared to 0.48%. For adult onset demodicosis (over 4 years) the Shar-pei had a prevalence of 0.6% compared to 0.05%. The Shar-pei is predisposed to several skin conditions including:

allergic skin disease Allergies, also known as allergic diseases, are various conditions caused by hypersensitivity of the immune system to typically harmless substances in the environment. These diseases include hay fever, food allergies, atopic dermatitis, aller ...

cutaneous mucinosis Mucinoses are a group of cutaneous diseases caused by fibroblasts producing abnormally large amounts of acid mucopolysaccharides (i.e. mucin), usually hyaluronic acid. Cutaneous mucinosis is a group of conditions involving an accumulation of muci ...

intertrigo Intertrigo, commonly called “skin fold dermatitis”, refers to a type of inflammatory rash (dermatitis) of the superficial skin that occurs within a person's body folds. These areas are more susceptible to irritation and subsequent infection d ...

otitis externa Otitis externa, also called swimmer's ear, is inflammation of the ear canal. It often presents with ear pain, swelling of the ear canal, and occasionally decreased hearing. Typically there is pain with movement of the outer ear. A high fever ...

, and

vasculopathy Vasculitis is a group of disorders that destroy blood vessels by inflammation. Both arteries and veins are affected. Lymphangitis (inflammation of lymphatic vessels) is sometimes considered a type of vasculitis. Vasculitis is primarily caused by ...

Familial Shar Pei Fever

Shar Pei fever (also called familial Shar Pei fever or FSF) is a condition seen in Shar Pei characterized by recurring

fever Fever or pyrexia in humans is a symptom of an anti-infection defense mechanism that appears with Human body temperature, body temperature exceeding the normal range caused by an increase in the body's temperature Human body temperature#Fever, s ...

and swelling of the

hock Hock may refer to: * Hock (wine), a type of wine * Hock (anatomy), part of an animal's leg * To leave an item with a pawnbroker * Hock (surname) * Richard "Hock" Walsh (1948-1999), Canadian blues singer * A type of wine bottle A wine bottl ...

s. It is similar to

familial Mediterranean fever Familial Mediterranean fever (FMF) is a hereditary inflammatory disorder. FMF is an autoinflammatory disease caused by mutations in the Mediterranean fever (MEFV) gene, which encodes a 781–amino acid protein called pyrin. While all ethnic ...

in humans. The cause is unknown, but it is thought to be inherited. Shar Pei fever can result in

renal In humans, the kidneys are two reddish-brown bean-shaped blood-filtering organs that are a multilobar, multipapillary form of mammalian kidneys, usually without signs of external lobulation. They are located on the left and right in the retrop ...

and

liver failure Liver failure is the inability of the liver to perform its normal synthetic and metabolic functions as part of normal physiology. Two forms are recognised, acute and chronic (cirrhosis). Recently, a third form of liver failure known as acute- ...

through accumulation of

amyloid Amyloids are aggregates of proteins characterised by a fibrillar morphology of typically 7–13 nm in diameter, a β-sheet secondary structure (known as cross-β) and ability to be stained by particular dyes, such as Congo red. In the human ...

in those organs (amyloidosis). Affected Shar Pei have an elevated level of

interleukin 6 Interleukin 6 (IL-6) is an interleukin that acts as both a pro-inflammatory cytokine and an anti-inflammatory myokine. In humans, it is encoded by the ''IL6'' gene. In addition, osteoblasts secrete IL-6 to stimulate osteoclast formation. Smoo ...

, and this leads to an accumulation of

acute phase protein Acute-phase proteins (APPs) are a class of proteins whose concentrations in blood plasma either increase (positive acute-phase proteins) or decrease (negative acute-phase proteins) in response to inflammation. This response is called the ''acute-p ...

s in the body during the fevers. The acute phase proteins are broken down to form type AA amyloid, which deposits in the

kidney In humans, the kidneys are two reddish-brown bean-shaped blood-filtering organ (anatomy), organs that are a multilobar, multipapillary form of mammalian kidneys, usually without signs of external lobulation. They are located on the left and rig ...

s and less so in the

liver The liver is a major metabolic organ (anatomy), organ exclusively found in vertebrates, which performs many essential biological Function (biology), functions such as detoxification of the organism, and the Protein biosynthesis, synthesis of var ...

spleen The spleen (, from Ancient Greek '' σπλήν'', splḗn) is an organ (biology), organ found in almost all vertebrates. Similar in structure to a large lymph node, it acts primarily as a blood filter. The spleen plays important roles in reg ...

, and

gastrointestinal tract The gastrointestinal tract (GI tract, digestive tract, alimentary canal) is the tract or passageway of the Digestion, digestive system that leads from the mouth to the anus. The tract is the largest of the body's systems, after the cardiovascula ...

. This eventually leads to kidney or liver failure by the age of six years. The symptoms of Shar Pei fever include fever, swelling, and pain in the hocks that usually resolves within two days. The swelling in the hocks is easily recognizable—the hock will resemble a flaccid waterballoon, rather than stiff swelling following a sprain or break. The symptoms can be treated with

NSAID Non-steroidal anti-inflammatory drugs (NSAID) are members of a therapeutic drug class which reduces pain, decreases inflammation, decreases fever, and prevents blood clots. Side effects depend on the specific drug, its dose and duration of ...

s such as

carprofen Carprofen is a nonsteroidal anti-inflammatory drug (NSAID) of the carbazole and propionic acid class that was previously for use in humans and animals but is now only available to veterinarians for prescribing as a supportive treatment for va ...

. Kidney and liver failure cannot be treated except by the conventional manner usually used for those diseases. Prevention of amyloidosis is sometimes used in dogs with recurring episodes of Shar Pei fever.

Colchicine Colchicine is a medication used to prevent and treat gout, to treat familial Mediterranean fever and Behçet's disease, and to reduce the risk of myocardial infarction. The American College of Rheumatology recommends colchicine, nonstero ...

and

dimethyl sulfoxide Dimethyl sulfoxide (DMSO) is an organosulfur compound with the formula . This colorless liquid is the sulfoxide most widely used commercially. It is an important polar aprotic solvent that dissolves both polar and nonpolar compounds and is ...

are most commonly used. The disease is associated with the Western type and it is estimated that 23% of dogs in the US are affected.

Other conditions

The Shar-pei is prediposed to

hypothyroidism Hypothyroidism is an endocrine disease in which the thyroid gland does not produce enough thyroid hormones. It can cause a number of symptoms, such as cold intolerance, poor ability to tolerate cold, fatigue, extreme fatigue, muscle aches, co ...

. A common problem is a painful eye condition,

entropion Entropion is a medical condition in which the eyelid (usually the lower lid) folds inward. It is very uncomfortable, as the eyelashes continuously rub against the cornea causing irritation. Entropion is usually caused by Genetics, genetic factors. ...

, in which the eyelashes curl inward, irritating the eye. If untreated, it can cause blindness. This condition can be fixed by surgery—"tacking" up the eyelids so they will not roll onto the eyeball for puppies, or surgically removing extra skin in adolescent and older shar peis.

Vitamin B12 Vitamin B12, also known as cobalamin, is a water-soluble vitamin involved in metabolism. One of eight B vitamins, it serves as a vital cofactor (biochemistry), cofactor in DNA synthesis and both fatty acid metabolism, fatty acid and amino a ...

deficiency is a common problem in the Shar Pei and is suspected to be hereditary. A review of over 250,000 elbow scans in North America found a 24% of Shar-Peis over the age of 2 to suffer from

elbow dysplasia Elbow dysplasia is a condition involving multiple developmental abnormalities of the elbow-joint in the dog, specifically the growth of cartilage or the structures surrounding it. These abnormalities, known as 'primary lesions', give rise to oste ...

. The Shar Pei is one of the more commonly affected breeds for

primary open angle glaucoma Glaucoma is a group of eye diseases that can lead to damage of the optic nerve. The optic nerve transmits visual information from the eye to the brain. Glaucoma may cause vision loss if left untreated. It has been called the "silent thief of ...

. An

autosomal recessive In genetics, dominance is the phenomenon of one variant (allele) of a gene on a chromosome masking or overriding the Phenotype, effect of a different variant of the same gene on Homologous chromosome, the other copy of the chromosome. The firs ...

mutation of the

ADAMTS17 ADAM metallopeptidase with thrombospondin type 1 motif, 17 is a protein that in humans is encoded by the ADAMTS17 gene. Function This gene encodes a member of the ADAMTS (a disintegrin and metalloproteinase with thrombospondin motifs) protein ...

gene is responsible for the condition in the breed. A review of hospital records in North America found 4.4% of Shar-Peis to suffer from

glaucoma Glaucoma is a group of eye diseases that can lead to damage of the optic nerve. The optic nerve transmits visual information from the eye to the brain. Glaucoma may cause vision loss if left untreated. It has been called the "silent thief of ...

compared to 0.71% for mixed-breeds. The Shar Pei is one of the two most commonly affected breeds for

hiatal hernia A hiatal hernia or hiatus hernia is a type of hernia in which abdominal organs (typically the stomach) slip through the diaphragm into the middle compartment of the chest. This may result in gastroesophageal reflux disease (GERD) or laryng ...

References

External links

{{Authority control FCI breeds Dog fighting breeds Dog breeds originating in China