British Longhair

Key Visual Markers

• Semi-long, dense coat that stands away from the body, plush and springy like the British Shorthair coat but long enough to form a ruff around the neck, britches on the hind legs, and light feathering on the tail; the coat thickens in winter and sheds heavily in spring
• Round head with full cheeks, a short nose, and a visible stop between forehead and nose; the muzzle is round and broad with a distinct whisker break, the same sweet, open expression as the British Shorthair
• Large, round copper or gold eyes (blue in colorpoint varieties), set wide apart
• Stocky, cobby body with a broad chest, short legs, and round paws; heavy-boned and substantial, with males noticeably larger than females
• Medium-length, thick tail with a rounded tip, carried at the same level as the back
• Slow to mature, reaching full size and coat length around 3 to 5 years old

Temperament & Traits

• Calm and easygoing — happy to lounge near you without demanding attention
• Affectionate on their own terms — enjoys being petted and sitting nearby, rarely insists on lap time
• Quiet — communicates with soft chirps and glances rather than loud meowing
• Good with children, dogs, and other cats — patient and rarely aggressive
• Slow to mature — stays playful and kittenish until 3 to 5 years old
• Low to moderate energy — enjoys short play sessions, then settles into long naps

Health Notes

• Hypertrophic cardiomyopathy (HCM) — the most common inherited heart disease in the breed, shared with the British Shorthair; regular cardiac screening recommended for breeding cats
• Polycystic kidney disease (PKD) — inherited from Persian outcross ancestry; a DNA test identifies carriers
• Obesity — the low-energy, easygoing nature makes weight management a lifelong priority
• Dental disease — the broad muzzle can crowd the teeth and raise gingivitis risk; regular dental care recommended
• Hemophilia B (Factor IX deficiency) — a rare bleeding disorder documented in British lines; responsible breeders test before breeding

This information is for educational purposes only. Always consult a veterinarian for health advice specific to your cat.