What to Know Before Buying a Cavalier King Charles Spaniel Puppy
Quick answer: Before you buy a Cavalier King Charles Spaniel puppy, know the joy and the hard truth. They’re sweet, gentle, affectionate lap-and-companion dogs that suit almost any home, but the breed carries serious inherited disease: mitral valve heart disease (MVD) affects most Cavaliers with age, and syringomyelia (SM) is widespread. Buying from a breeder who follows the MVD and SM screening protocols is the single most important decision you’ll make. Lifespan is often cited around 9–14 years.
At a Glance
| Group | Toy (AKC, recognized 1995) |
| Origin | United Kingdom |
| Height | 12–13 inches |
| Weight | 13–18 lbs |
| Lifespan | Often cited 9–14 years (shortened by heart disease) |
| Coat | Silky, medium-length; moderate grooming |
| Color | Blenheim, tricolor, black and tan, ruby |
| Temperament | Gentle, affectionate, cheerful, friendly, adaptable |
| Good for | Almost any home, families, seniors, apartments, with eyes open on health |
1. The Sweetest Temperament, and a Serious Health Caveat
Cavaliers are about as gentle and loving as dogs come, cheerful, friendly with everyone, wonderful with children, seniors, and other pets, and a top choice for first-time owners on temperament alone. But you cannot consider this breed without confronting its health. Mitral valve disease (MVD) is extremely common, with most Cavaliers developing a heart murmur with age, and it’s the leading cause of early death. Syringomyelia (SM), a painful neurological condition, is also widespread.
2. Why the Breeder Matters More Than Almost Anything
Responsible Cavalier breeders follow specific protocols, cardiologist heart screening (and breeding guidelines around the age of onset of murmurs) and MRI-based SM screening, plus eye and hip/patella testing. These protocols measurably improve a puppy’s odds. Buying from a breeder who skips them, or from a pet store or high-volume seller, dramatically raises the risk of heartbreak. This is the decision to get right.
3. Easy to Live With, Easy to Train
Cavaliers are adaptable, playful but laid-back, and happy in apartments or houses as long as they’re with their people, they hate being left alone and can develop separation anxiety. They train readily with gentle, positive methods. Their spaniel heritage means some will chase birds or cars, so leashed walks are wise.
4. Grooming and Other Health Notes
The silky coat needs brushing several times a week and routine ear care (those long ears trap moisture). Keep them lean to protect the heart. Beyond MVD and SM, watch for eye conditions, patellar luxation, hip dysplasia, and episodic falling syndrome, all part of responsible screening.
5. Finding a Responsible Breeder
Start with the American Cavalier King Charles Spaniel Club and verify any breeder against the AKC Marketplace. Ask directly how they screen for MVD and SM and how old their breeding dogs were when cleared, the answers tell you almost everything.
Frequently Asked Questions
How long do Cavalier King Charles Spaniels live?
Often cited around 9 to 14 years, but the breed’s lifespan is frequently shortened by mitral valve heart disease. Buying from a breeder who follows heart-screening protocols gives the best odds.
How much does a Cavalier puppy cost?
Prices vary by breeder and region, so confirm current figures directly with ACKCSC breeders. Prioritize health screening over price.
Are Cavaliers good for first-time owners?
On temperament, yes, they’re gentle, affectionate, and easy to train. The catch is health, so the key is choosing a breeder who screens rigorously for heart and neurological disease.
What health problems do Cavaliers have?
Most notably mitral valve heart disease (MVD) and syringomyelia (SM), plus eye conditions, patellar luxation, and hip dysplasia. Responsible breeders screen for all of these.
Read the official AKC breed standard
Sources
American Kennel Club – Cavalier King Charles Spaniel
American Cavalier King Charles Spaniel Club
Orthopedic Foundation for Animals (OFA)
AKC Marketplace