Burmese Cat: Every One Descends From a Single Cat

This is worth knowing precisely, not just as an interesting historical note: every Burmese cat in the world today descends from a single cat named Wong Mau, brought from Burma to San Francisco in 1930 by Dr. Joseph Thompson. Genetic analysis later revealed Wong Mau wasn't a purebred Siamese as originally believed, but a Siamese-Burmese hybrid carrying both colorpoint and sepia genes. Thompson bred her to a Siamese, then back-crossed the offspring to isolate what became the modern Burmese type — meaning the entire breed's gene pool traces to one specific animal's genetics.

This deserves direct, careful attention rather than a passing mention on a health list: the Burmese head defect is a lethal recessive genetic mutation causing severe craniofacial deformities — affected kittens can be born with exposed brain tissue, missing skull bones, absent or deformed jaws, and facial clefts. These kittens are stillborn or must be humanely euthanized at birth. When two carrier cats are bred together, up to 25% of the resulting kittens can be affected. A DNA test exists to identify carriers, and this is genuinely the single most important thing to ask a breeder about directly — not a general health assurance, but specific documentation that both parents have been tested and aren't both carriers.

Worth understanding the real cause: as breeders focused intensely on developing the distinctive rounded head shape associated with the American Burmese type, this selective pressure inadvertently concentrated the genetic mutations behind the head defect and other inherited conditions. The breed's official recognition even reflects this history — the CFA suspended Burmese recognition in 1947 specifically due to concerns about excessive outcrossing, before reinstating it in 1953 with tighter standards.

Worth knowing as a genuinely practical distinction: the European (or British) Burmese type is leaner and more moderate, closer to Wong Mau's original build, and is generally considered to carry fewer of the serious health problems associated with the more extreme, rounder American type. If the head defect risk concerns you, a European-type Burmese from a GCCF or FIFe registered breeder is worth genuine consideration as a comparatively lower-risk option.

Beyond the head defect, hypokalemia (low potassium, causing muscle weakness and difficulty walking) is manageable with lifelong potassium supplementation once diagnosed. Diabetes mellitus is statistically more common in this breed than in many others — European bloodlines specifically carry elevated risk — making weight management a genuine priority given the breed's famously enthusiastic eating habits. Glaucoma and feline orofacial pain syndrome, a neurological condition documented in some lines, round out the concerns worth discussing with a breeder.

Burmese cats are consistently described as curious, confident, and highly social — often called "dog-like" for their tendency to follow owners around the house and insert themselves into daily activities. Breeders sometimes describe the build itself as "a brick wrapped in silk" — surprisingly heavy and dense-boned for their compact size, with minimal grooming needs given the short, glossy coat.