|Other names||Deutscher Spitz; Zwergspitz; Spitz nain; Spitz enano; Pom; Zwers|
|Common nicknames||Pompom, Pom, Tumbleweed|
|Domestic dog (Canis lupus familiaris)|
The Pomeranian (often known as a Pom or Pom Pom) is a breed of dog of the Spitz type that is named for the Pomerania region in Poland Central Europe. Classed as a toy dog breed because of its small size, the Pomeranian is descended from the larger Spitz type dogs, specifically the German Spitz. It has been determined by the Fédération Cynologique Internationale to be part of the German Spitz breed; and in many countries, they are known as the Zwergspitz ("Dwarf-Spitz").
The breed has been made popular by a number of royal owners since the 18th century. Queen Victoria owned a particularly small Pomeranian and consequently the smaller variety became universally popular. During Queen Victoria's lifetime alone, the size of the breed decreased by 50%. Overall, the Pomeranian is a sturdy, healthy dog. The most common health issues are luxating patella and tracheal collapse. More rarely, the breed can suffer from Alopecia X, a skin condition colloquially known as "black skin disease". This is a genetic disease which causes the dog's skin to turn black and lose all or most of its hair. As at 2013, in terms of registration figures, since at least 1998, the breed has ranked among the top twenty most popular breeds in the USA, and the current fashion for small dogs has increased their popularity worldwide.
Pomeranians are small dogs weighing 1.9–3.5 kilograms (4.2–7.7 lb) and standing 5.0–11 inches (13–28 cm) high at the withers. They are compact but sturdy dogs with an abundant textured coat with a highly plumed tail set high and flat. The top coat forms a ruff of fur on the neck, which Poms are well known for, and they also have a fringe of feathery hair on the hindquarters.
The earliest examples of the breed were white or occasionally brown or black. Queen Victoria adopted a small red Pomeranian in 1888, which caused that color to become fashionable by the end of the 19th century. In modern times, the Pomeranian comes in the widest variety of colors of any dog breed, including white, black, brown, red, orange, cream, blue, sable, black and tan, brown and tan, spotted, brindle, plus combinations of those colors. The most common colors are orange, black or cream/white.
The merle Pomeranian is a recent color developed by breeders. It is a combination of a solid base color with lighter blue/grey patch which gives a mottled effect. The most common base colors for the effect are red/brown or black, although it can also appear with other colors. Combinations such as brindle merle or liver merle are not accepted in the breed standard. In addition, the eye, nose and paw pad are marshmallow color, changing parts of the eye to blue and the color on the nose and paw pads to become mottled pink and black.
Pomeranians have a thick, double coat. While grooming is not difficult, breeders recommend that it be done daily to maintain the quality of the coat and because of its thickness and the constant shedding, with trimming every 1–2 months. The outer coat is long, straight, and harsh in texture while the undercoat is soft, thick and short. The coat knots and tangles easily, particularly when the undercoat is being shed, which happens twice a year.
Pomeranians are typically friendly, playful and lively but are often aggressive to other dogs and try to prove themselves  Pomeranians are alert and aware of changes in their environment and barking at new stimuli can develop into a habit of barking excessively in any situation. They are somewhat defensive of their territory and will thus bark a lot when they encounter any outside noises. Pomeranians are intelligent dogs, respond well to training, and can be very successful in getting what they want from their owners. They are extroverted and enjoy being the center of attention but can become quite aggressive and dominant if not well trained. The use of toys can be an effective tool in encouraging pomeranians to spend time alone.
The life expectancy of a Pomeranian is 12 to 16 years. A well-bred dog on a good diet with appropriate exercise will have few health problems; and, if kept trim and fit, a Pomeranian is a sturdy dog. The breed does have similar health issues to many dog breeds, although some issues such as hip dysplasia are uncommon because of the Pomeranian's lightweight build. Some health issues can develop as a result of lack of attention to grooming and teeth-, ear-, and eye-cleaning. With routine care, these problems can be avoided. They are prone to early tooth loss, and dry food is recommended. Poms are one of the breeds with the smallest average litter size, with various source giving numbers of between 1.9 and 2.7 puppies per litter.
Merle colored dogs may suffer from mild to severe deafness, increased intraocular pressure, ametropia, microphthalmia, and colobomas. Merle dogs born from parents who are also both merles may additionally suffer from abnormalities of the skeletal, cardiac and reproductive systems.
Luxating patella is another health issue in the Pomeranian breed. It occurs when, through either malformation or trauma, the ridges forming the patellar groove in the knee are not prominent and are too shallow to allow the patella to properly sit securely. This can cause the patella to "luxate" (jump out of the groove) sideways which will cause the leg to lock up with the foot off the ground. While the muscles are contracted the patella cannot return to the correct position. The initial pain is caused by the knee cap sliding across the ridges of the femur. Once out of position, the dog does not feel any pain caused by the slipped disc.
Tracheal collapse is caused by a weakening of the tracheal rings in the windpipe. It occurs when the rings that normally hold the shape of the windpipe collapse, closing the airway. The symptoms of a collapse include a honking cough that can sound similar to a goose honk, an intolerance to exercise, fainting spells and a cough that is worsened by hot weather, exercise and excitement. The tendency for episodes of tracheal collapse typically increases in frequency and severity as the dog ages.
In Pomeranians, a condition often called "black skin disease" occurs which is a combination of alopecia (hair loss) and hyperpigmentation (a darkening of the skin). Other names for this condition include woolly coat, coat funk, pseudo-Cushing's disease, or severe hair loss syndrome. This condition affects male Pomeranians more than females, and may be inherited. Although most affected dogs show signs following puberty, it can occur at any age. Other conditions can mimic this condition including Cushing's syndrome, hypothyroidism, chronic skin infections, and reproductive hormone disorders.
Another common disorder in male Pomeranians is cryptorchidism. This is when either one or both of the testicles do not descend into the scrotum. It is treated through surgical removal of the retained testicle.
The Pomeranian is a small but energetic breed of dog. Although Pomeranians benefit from frequent attention, they need relatively little exercise: it is recommended to take them on a short daily walk or let them run around an enclosed space.
The forerunners of today's Pomeranian breed were large working dogs from the Arctic regions. These dogs are commonly known as the Wolfspitz or Spitz type, which is German for "sharp point" which was the term originally used by Count Eberhard zu Sayn in the 16th Century as a reference to the features of the dog's nose and muzzle. The Pomeranian is considered to be descended from the German Spitz.
The breed is thought to have acquired its name by association with the area known as Pomerania which is located in northern Poland and Germany along the Baltic Sea. Although not the origin of the breed, this area is credited with the breeding which led to the original Pomeranian type of dog. Proper documentation was lacking until the breed's introduction into the United Kingdom.
An early modern recorded reference to the Pomeranian breed is from 2 November 1764, in a diary entry in James Boswell's Boswell on the Grand Tour: Germany and Switzerland. "The Frenchman had a Pomeranian dog named Pomer whom he was mighty fond of." The offspring of a Pomeranian and a wolf bred by an animal merchant from London is discussed in Thomas Pennant's A Tour in Scotland from 1769.
Named Phoebe and Mercury, the dogs were depicted in paintings by Sir Thomas Gainsborough. These paintings depicted a dog larger than the modern breed, reportedly weighing as much as 30–50 lb (14–23 kg), but showing modern traits such as the heavy coat, ears and a tail curled over the back.
Queen Victoria, Queen Charlotte's granddaughter, was also an enthusiast and established a large breeding kennel. One of her favoured dogs was a comparatively small red sable Pomeranian which she possibly named "Windsor's Marco" and was reported to weigh only 12 lb (5.4 kg). When she first exhibited Marco in 1891, it caused the smaller type Pomeranian to become immediately popular and breeders began selecting only the smaller specimens for breeding. During her lifetime, the size of the Pomeranian breed was reported to have decreased by 50%. Queen Victoria worked to improve and promote the Pomeranian breed by importing smaller Pomeranians of different colors from various European countries to add to her breeding program. Royal owners during this period also included Joséphine de Beauharnais, the wife of Napoleon I of France, and King George IV of England.
The first breed club was set up in England in 1891, and the first breed standard was written shortly afterwards. The first member of the breed was registered in America to the American Kennel Club in 1898, and it was recognized in 1900.
In 1912, two Pomeranians were among only three dogs to survive the sinking of RMS Titanic. A Pomeranian called "Lady", owned by Miss Margaret Hays, escaped with her owner in lifeboat number seven, while Elizabeth Barrett Rothschild took her pet to safety with her in lifeboat number six.
Glen Rose Flashaway won the Toy Group at the Westminster Kennel Club Dog Show in 1926, the first Pomeranian to win a group at Westminster. It would take until 1988 for the first Pomeranian, "Great Elms Prince Charming II", to win the Best in Show prize from the Westminster Kennel Club.
In the standard published in 1998, the Pomeranian is included in the German Spitz standard, along with the Keeshond, by the Fédération Cynologique Internationale. According to the standard "Spitz breeds are captivating" and have a "unique characteristic, cheeky appearance."
The Pomeranian has been among the more popular dog breeds in the United States, featuring consistently in the top 20 of registered AKC dog breeds since at least 1998, when it was ranked #10; the breed was #17 in the 2011 rankings, dropping two spots from the previous year. In 2012 and 2013 it remained in the top twenty and was ranked at #19.
It is not listed in the top 20 breeds in the UK in either 2007 or 2008. In Australia their popularity has declined since 1986, with a peak of 1128 Pomeranians registered with the Australian National Kennel Council in 1987; only 577 were registered in 2008. However, this is an increase from 2004, when only 491 dogs were registered.
It is more popular in American cities in 2008, ranking joint tenth (with American Bulldog) in Detroit and Orlando, ninth in Los Angeles, a joint seventh in Seattle (again, with the American Bulldog), but third in Honolulu, only bested by the Labrador Retriever and the German Shepherd Dog.
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Pomeranian and Toy Poodle had the smallest mean litter size in our study [2.4], which is in line with the results of previous studies [7–9,15]. A mean litter size of 2.0 puppies in Pomeranian was reported in the Australian study (n 2) . In studies including only registered puppies, Lyngset et al , Tedor  and Bergström et al  found a mean litter size of 2.04 (n 108), 2.71 (n 33,648) and 1.9 (n 954) puppies in Pomeranian, respectively.
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