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Traditional vs Modern Siamese Edmonton: Body Type, Health, Lifespan

Two body types share the breed name. Traditional Applehead Siamese have rounder apple-shaped faces and stockier bodies with somewhat better health and longer lifespan (15 to 20 years). Modern Wedge Siamese have extreme wedge-shaped faces, slender bodies, and large flared ears, the current CFA show standard with somewhat higher health concerns and lifespan of 12 to 16 years. For an Edmonton pet home, Traditional is generally the better health choice. Most Edmonton rescue Siamese are Traditional Applehead. This guide covers the conformation history, the health gap, and the body-type-first decision framework.

13 min read · Updated June 8, 2026
Author: LocalPetFinder Team

The short answer

Traditional Applehead Siamese (also called Thai in TICA) and Modern Wedge Siamese share the Siamese name but have substantially different body types. Traditional has a rounder apple-shaped head, stockier muscular body, weight 8 to 14 lbs, lifespan often 15 to 20 years. Modern has an extreme wedge-shaped face, slender body, large flared ears, weight 5 to 10 lbs, lifespan often 12 to 16 years. Both share the colour-point pattern and the famous blue eyes. The Modern Wedge body type concentrates show-bred conformation extremes that correlate with somewhat higher rates of dental crowding, respiratory issues, and possibly amyloidosis. For an Edmonton pet home, Traditional Applehead is generally the better choice. Most Edmonton rescue Siamese are Traditional.

A side-by-side comparison of a Traditional Applehead Siamese with rounder face and stockier body and a Modern Wedge Siamese with extreme wedge-shaped face and slender body, illustrating the conformation differences Edmonton adopters should understand
Two body types within the same breed. Traditional Applehead retains the original conformation; Modern Wedge is the current CFA show standard. For pet purposes, Traditional usually wins.

Comparison at a glance

TraitTraditional (Applehead / Thai)Modern (Wedge / Show)
Head shapeRound, apple-shaped, moderate proportionsExtreme wedge, very flat face profile
EarsProportionate, set on top of headVery large, flared outward, set wide on the wedge
Body typeStocky, muscular, moderate proportionsSlender, long-legged, tubular
Adult weight8 to 14 lbs5 to 10 lbs
Lifespan15 to 20 years12 to 16 years
Dental crowdingModerateMore common
Respiratory issuesLess commonModestly more common
CFA registrationSiameseSiamese
TICA registrationThai (separate breed)Siamese
Typical breeder cost$600 to $1,200$1,500 to $2,500
Edmonton rescue availabilityMore commonRare

How the two conformations developed

The Siamese is one of the oldest recognised cat breeds, with documented presence in Siam (modern Thailand) by the 14th century. The original conformation, what we now call Traditional or Applehead, had a rounder apple-shaped head, stockier body, and overall robust proportions. This was the Siamese that entered Britain in the 1880s and the United States shortly after, and was recognised at the founding of the Cat Fanciers' Association in 1906.

Through the mid-20th century, show breeders gradually selected for a more slender body and wedge-shaped face. The shift was incremental, driven by show-ring trends rather than a single mutation. By the 1980s the Modern Wedge conformation had become the dominant CFA show standard, with the very extreme wedge face and large flared ears that defines the type today.

Traditional breeders preserved the older conformation, recognising the health and longevity advantages. TICA recognised the Traditional conformation as a separate breed called Thai in 2007, while CFA continues to register both conformations as Siamese under the same breed name.

Both conformations share the breed-defining traits: blue eyes, colour-point pattern (cream body with darker face, ears, paws, tail), distinctive vocal personality, dog-like loyalty, intelligence. The differences are in body type and the health consequences that flow from extreme conformation.

The health gap in plain language

Modern Wedge Siamese concentrate the show-bred extremes that correlate with somewhat higher rates of several breed-elevated health concerns. Traditional Applehead Siamese retain the older more robust conformation with somewhat better baseline health and longer average lifespan. The gap is meaningful but not dramatic.

Four health categories show meaningful differences between the body types:

1. Dental crowding. The Modern Wedge elongated jaw concentrates teeth in a narrower space, leading to crowding, rotation, and gum-line pockets that trap food. Periodontal disease develops earlier. Traditional Applehead Siamese have somewhat more space for the dental arcade and less severe crowding.

2. Respiratory issues. Feline asthma rates are modestly higher in Modern Wedge than Traditional. The mechanism is not fully understood; the extreme conformation may correlate with airway sensitivity.

3. Amyloidosis. The Siamese-specific protein deposition disease (affecting liver and kidneys most commonly) is documented as a breed-elevated concern by the Cornell Feline Health Center. Some research suggests Modern Wedge lines may carry somewhat higher risk than Traditional, but the data is limited and individual lines vary widely. The dedicated Siamese health issues guide covers amyloidosis in depth.

4. Lifespan. The combined effect of the above shows up in average lifespan. Traditional Applehead Siamese commonly live 15 to 20 years; Modern Wedge often 12 to 16 years. With proactive care, individuals in both groups can reach the upper end of the range. The pet insurance and annual care budgets should plan for the long lifespan regardless of body type.

Edmonton dry winter indoor air (15 to 25 percent humidity through furnace season) can aggravate asthma in susceptible Siamese of either body type. A humidifier in the cat's primary room helps known asthmatic cats.

Browse adoptable Siamese in Edmonton

Most Edmonton rescue Siamese are Traditional Applehead, which is also the healthier body type for pet homes. Live Siamese and Siamese-mix listings from Edmonton Humane Society, Zoe's Animal Rescue, SCARS, and AARCS Edmonton fosters.

See Available Cats in Edmonton →

How to choose if you go the breeder route

If you are committed to the breeder path rather than rescue, several questions clarify which body type the breeder produces and how they think about Siamese health.

  • “Do you breed Traditional Applehead or Modern Wedge?” An ethical breeder answers directly. Some breeders specialise in one type; others breed both.
  • “Can I see side-profile photos of the parents and recent litters?” Side profile makes the conformation obvious. The wedge head versus rounder Traditional head reads clearly.
  • “What is your approach to amyloidosis screening?” There is no DNA test for amyloidosis. An ethical breeder tracks family history and discusses the breed-elevated risk openly.
  • “Annual HCM echocardiogram on breeding parents?” Non-negotiable for breeding cats. Read by a veterinary cardiologist.
  • “Kitten release age?” Twelve weeks minimum, 14 to 16 weeks is better.
  • “Registration body?” CFA registers both types as Siamese. TICA registers Modern as Siamese and Traditional as Thai. Verify cattery numbers directly via cfa.org or tica.org rather than trusting a seller's claim.
  • “Contract terms?” Spay or neuter clause, return-to-breeder clause if you cannot keep the cat, health guarantee terms.

This article does not name specific Edmonton breeders.

The Edmonton-specific takeaway

For Edmonton adopters, the practical conclusion is simple: Traditional Applehead Siamese is generally the better pet choice. The body type is healthier, the lifespan is longer, the temperament shared between the two is delivered by both, and most Edmonton rescue Siamese are Traditional. Adopters who specifically want the show-ring Modern Wedge look can pursue a CFA breeder kitten, with the understanding that the conformation comes with somewhat higher health management over the lifetime.

Either body type requires the same Edmonton management: indoor-only, attention to amyloidosis risk factors from middle age, dental care, asthma management if symptoms appear, and a humidifier through the long dry winter. Both share the breed's vocal personality and social demands. The dedicated vocalisation and separation anxiety guide covers the behaviour management common to both body types.

If you are still in the adoption-decision phase, our companion guide on Siamese adoption in Edmonton covers the rescue landscape, real costs, and the rescue-vs-breeder math.

Sources and further reading

Sources informing this article include the Cat Fanciers' Association Siamese breed standard, the TICA Siamese and Thai breed reference materials, and the Cornell Feline Health Center on breed-elevated conditions. Health decisions belong with your Edmonton veterinarian.

Frequently Asked Questions

What is the difference between Traditional and Modern Siamese?

Traditional Siamese (also called Applehead or Old-Style, sometimes called Thai in TICA) has the original pre-1950s conformation: a rounder apple-shaped head, stockier muscular body, and weight 8 to 14 lbs. Modern Siamese (also called Wedge, Show, or Extreme) has the slender body, extreme wedge-shaped face, large flared ears, and long thin legs that defines the current TICA and CFA show standard, weighing 5 to 10 lbs. Both share the colour-point pattern (cream body with darker face, ears, paws, tail) and the famous blue eyes. The breeds are registered the same way (Siamese in CFA, sometimes Thai as a separate breed in TICA for the Traditional type), but the conformation differences are dramatic.

Which is healthier, Traditional or Modern Siamese?

Traditional wins by a meaningful margin. The Modern Wedge body type concentrates show-bred conformation extremes (very slender body, extreme wedge face, large ears, long thin legs), which correlates with somewhat higher rates of dental crowding, respiratory issues, and possibly amyloidosis. The Traditional Applehead retains the older more robust conformation with somewhat better baseline health. Lifespan reflects this: Traditional often 15 to 20 years, Modern often 12 to 16 years. For an Edmonton pet home rather than a show home, Traditional is the better health choice.

Is the Thai cat the same as a Traditional Siamese?

Effectively yes. The Thai is the TICA breed designation for the Traditional Applehead Siamese conformation, recognised as a separate breed since 2007 to preserve the older type. The Thai breed standard describes the rounder face, stockier body, and overall closer-to-Old-Style conformation. In CFA the same cat is still registered as Siamese (or Colorpoint Shorthair for non-traditional point colours). Calgary, Edmonton, and Canadian breeders working with Traditional conformation may market under either name (Thai or Traditional Siamese) depending on their primary registry.

Are Modern Wedge Siamese more expensive than Traditional?

Usually yes. Top-line Modern Wedge show kittens from CFA-titled lines run $1,500 to $2,500 in Canada. Traditional Applehead kittens from breeders specifically preserving the older type often cost $600 to $1,200 because there is less show-circuit demand. For rescue the price difference disappears: an Edmonton rescue Siamese is $300 to $500 regardless of body type. Most Edmonton rescue Siamese are Traditional Applehead because the older type was more common in the breeding pool 20 to 30 years ago and continues to be common in pet homes.

Are both Traditional and Modern registered as Siamese?

CFA registers both as Siamese (with the caveat that some point colours register as Colorpoint Shorthair). TICA registers Modern Wedge as Siamese and Traditional Applehead as Thai (a separate breed). Calgary, Edmonton, and Canadian breeders may use either registry. From the day-to-day pet ownership standpoint, the registration body matters less than the body type and the individual cat's health.

Where can I find a Traditional Siamese in Edmonton?

More easily than Modern Wedge. Most Edmonton rescue Siamese intake at Edmonton Humane Society, Zoe's Animal Rescue, SCARS, and AARCS Edmonton fosters is Traditional Applehead because the older type was the dominant Siamese conformation in pet homes 20 to 30 years ago. Adopters who specifically want Traditional Applehead for health reasons can often find one through Edmonton rescue. For breeder kittens, some Canadian breeders specifically preserve the Traditional or Thai type; verify TICA registration directly via tica.org.

Where can I find a Modern Wedge Siamese in Edmonton?

Almost always through a breeder. Modern Wedge Siamese rarely appear in Edmonton rescue because the type is bred specifically for show and pet adopters who want the show look usually go to breeders. Expect a 4 to 9 month CFA breeder waitlist and $1,500 to $2,500 for a pet-quality kitten with HCM-screened parents. Verify CFA registration directly via cfa.org. This article does not name specific breeders.

Does temperament differ between Traditional and Modern?

Slightly. Both body types share the breed-defining Siamese temperament: vocal, social, intelligent, devoted, dog-like in loyalty, demanding of attention. Some Traditional Applehead owners describe their cats as slightly calmer than Modern Wedge; some Modern Wedge owners describe their cats as more intensely interactive. Individual variation within each body type is wider than the average difference between body types. Foster notes on the specific cat matter more than the body-type label.

What are the visual differences I can see in photos?

Three main differences. First, the head: Traditional has a rounder apple-shaped head with proportionate ears; Modern has an extreme wedge-shaped face with very large flared ears that look almost too big for the head. Second, the body: Traditional is stocky and muscular with moderate proportions; Modern is extremely slender, long-legged, and tubular with almost greyhound-like proportions. Third, the overall impression: Traditional looks like a robust working cat; Modern looks like a fashion-show creature. Side-profile photos make the head difference obvious. Front-facing photos make the ear-size difference obvious.

Do the four point colours apply to both body types?

Yes. Both Traditional and Modern Siamese come in the four traditional point colours: seal (dark brown points), blue (grey points), chocolate (warm brown points), and lilac (pinkish-grey points). The CFA recognises only these four for Siamese; other colours (red, tortie, lynx point) are classified as Colorpoint Shorthair in CFA but registered as Siamese in TICA. The colour distinction is genetic and independent of body type, so a Traditional seal point and a Modern seal point are both seal-point cats, just in different bodies.

Which body type is better for first-time cat owners in Edmonton?

Traditional Applehead, in most cases. The slightly more robust health profile, the slightly longer lifespan, the more moderate body type, and the more common availability through Edmonton rescue all favour Traditional for first-time owners. Modern Wedge is a more demanding cat in terms of conformational health monitoring and higher initial breeder cost. For experienced owners who specifically want the show look and are prepared for the higher veterinary involvement, Modern Wedge can be a wonderful match. For first-timers, Traditional is the easier path.

Does Edmonton climate affect either body type differently?

Modestly. The Modern Wedge body type with very low body fat and a fine short coat can feel cold more readily in dry Edmonton winter indoor environments (15 to 25 percent humidity, ambient temperatures often kept cooler in furnace-heated homes). Some Modern Wedge owners provide heated beds or warmed blankets during the coldest months. Traditional Applehead body type handles indoor temperatures better due to slightly higher body fat and more robust musculature. Neither body type tolerates outdoor Edmonton conditions; both are strictly indoor cats.

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