Cavalier King Charles Spaniel: Everything You Need to Know

Veterinary and insurance guide · Petplan Spain Team · Updated 2026

The Cavalier King Charles Spaniel is one of the most charming companion dogs in the world: a small, elegant toy spaniel with a sweet, melting expression, long silky ears and a famously gentle, affectionate nature. It adapts beautifully to almost any home and is a wonderful family pet, but the breed carries two serious and well-known veterinary predispositions — a heart condition and a neurological one — that make informed care and planning especially important. In this guide we cover its origin, its temperament, the conditions we most often see in the clinic, the grooming and care it needs, and the real veterinary costs worth planning for in Spain, and we explain why Petplan pet insurance is the best choice for your Cavalier.

Origin and history of the Cavalier King Charles Spaniel

The Cavalier descends from the small toy spaniels beloved at the royal courts of England from the 16th century onwards, famously associated with King Charles II — hence the name. The modern Cavalier was recreated in the 20th century to recover the longer-nosed, flat-skulled type seen in old paintings, distinguishing it from the shorter-faced King Charles Spaniel.

The Fédération Cynologique Internationale (FCI) recognises the Cavalier King Charles Spaniel under standard number 136, in group 9 (companion and toy dogs). Its hallmarks are its gentle, melting expression, its long, feathered ears, its silky coat in four classic colours and a temperament so friendly that it is purely a companion rather than a guard dog.

Physical characteristics

Temperament and character

The Cavalier King Charles Spaniel is gentle, affectionate, sociable and eager to please. It is one of the friendliest of all breeds, bonding intensely with its family and getting on beautifully with children, other dogs and cats. It is adaptable enough to thrive in a flat or a house, in town or country, provided it has company and inclusion in family life.

Two traits are worth knowing before you adopt. First, the Cavalier is deeply people-oriented and dislikes being left alone for long; it suits a home where someone is around for much of the day, and can develop separation anxiety otherwise. Second, while it retains a spaniel’s love of a sniff and a gentle chase, it is a true lapdog at heart — easy to train with kindness, but happiest curled up with its people. Its trusting, unguarded nature means it needs sensible supervision around traffic and larger dogs.

Common health problems in the Cavalier King Charles Spaniel

The Cavalier is an affectionate, generally happy companion, but it is a breed with two serious, well-documented predispositions that every prospective owner should understand, plus several lesser ones.

Mitral valve disease (heart)

This is the breed’s most important health concern. The Cavalier is strongly predisposed to mitral valve disease (MVD), a degenerative condition of a heart valve that often appears earlier than in other breeds. It causes a heart murmur and, over time, can progress to heart failure. It is manageable for years with medication and monitoring, which is why regular cardiac check-ups and buying from heart-screened lines matter so much.

Syringomyelia (neurological)

The Cavalier is also predisposed to syringomyelia, a serious neurological condition in which fluid-filled cavities form in the spinal cord, linked to the breed’s skull shape (Chiari-like malformation). It can cause pain, sensitivity around the head and neck and characteristic “air scratching”. Diagnosis needs MRI, and management can be lifelong; severe cases may need specialist neurology or surgery.

Eyes, ears and joints

The breed is predisposed to several hereditary eye conditions (including retinal problems and dry eye), to ear infections because of its long, pendulous ears, and to joint conditions such as hip dysplasia and patellar luxation. Like many small companions, it gains weight easily, which worsens both heart and joint problems.

Coat care and feeding

The Cavalier’s silky, feathered coat is relatively easy to maintain but needs brushing several times a week to prevent the feathering on the ears, legs and tail from matting. The long ears need regular cleaning to prevent infection, and the hair around the eyes and feet benefits from routine care. The coat should never be clipped short, as it is part of the breed’s natural protection.

Feeding should be based on a quality food suited to a small companion dog, with portions measured carefully — the Cavalier loves its food and gains weight very easily, and excess weight is especially harmful given its predisposition to heart disease. Dental care matters too, as small breeds are prone to dental disease. Fresh water should always be available.

Exercise and stimulation

The Cavalier needs moderate daily exercise: around an hour of walks and play is ideal, adapted to its age and heart health. It enjoys a gentle spaniel sniff-and-explore as much as a brisk walk, and it loves games and company more than intense physical effort. It is equally happy to settle on the sofa afterwards.

Because the Cavalier is intelligent and people-oriented, gentle training, games and company matter as much as physical exercise. Where heart disease is present, exercise should be moderated on veterinary advice. A Cavalier that gets enough gentle activity, mental engagement and — above all — company is a calm, devoted and exceptionally affectionate companion.

How much does pet insurance for a Cavalier King Charles Spaniel cost?

The price of pet insurance for a Cavalier in Spain depends on the age at sign-up, the type of cover (third-party liability, accidents, full health), the capital limit and the geographic area. For a Cavalier insured before its third birthday, the average Petplan premium is around EUR 320 per year on intermediate cover.

To put the value in perspective: mitral valve disease means lifelong cardiac medication, monitoring and sometimes specialist cardiology; syringomyelia can need MRI, specialist neurology and even surgery; and eye, ear and joint conditions add further costs. Given how predisposed the breed is to chronic, serious disease, insurance is especially valuable here — it turns that unpredictable financial risk into a stable monthly payment.

Why Petplan is the best choice for your Cavalier King Charles Spaniel

Petplan has been Europe’s leading pet insurer since 1976 and operates in Spain as Petplan Ibérica. Our cover is designed specifically for the particularities of the Cavalier King Charles Spaniel: mitral valve disease, syringomyelia, hereditary eye conditions, ear infections and joint problems all fall within the scope of the policy, provided the animal is insured before they show clinically.

We work with free choice of vet across Spain: you can keep going to your trusted vet or your referral cardiologist or neurologist, not a closed network — which matters enormously for a breed that often needs specialist care. Reimbursement is quick, and the policy covers your Cavalier for its whole life as long as you renew, with no exclusions for conditions that arise with age.

If you want to know exactly what it costs to insure your Cavalier King Charles Spaniel, with its date of birth, postcode and level of cover, you can calculate your personalised price in under a minute with no obligation.