Cavalier King Charles Spaniel

Who it suits

Almost anyone who wants a dog close by. The Cavalier is one of the gentlest breeds there is: patient with children, friendly to strangers, no trouble with other dogs. It will never be a guard dog.

It is a companion dog in the original sense — bred to sit with people. It wants to be in the same room as you and takes being left alone badly.

It does not suit a household that is empty all day. And it does not suit anyone unwilling to deal with health: that is what the second half of this article is about.

What it looks like

• Height: 30–33 cm at the withers
• Weight: 5.4–8 kg
• Coat: long, silky, slightly wavy, with feathering on the ears, legs and tail
• Colours: four recognised — Blenheim (chestnut and white), tricolour, black and tan and ruby (whole chestnut)
• Lifespan: usually 9–13 years

The King Charles Spaniel is a different breed, not a variety. It is smaller, with a flatter face and a shorter nose. The Cavalier has a longer muzzle and a less domed head.

How much exercise it needs

An hour a day split into two or three walks is enough. A Cavalier will happily go further if you do, and is just as happy to stay home.

It can manage hill walking or a quiet flat — but if the dog has a heart murmur, the level of exercise is a question for the vet, not for guesswork.

Coat care

Brush two or three times a week. Mats form mainly behind the ears and in the armpits; the long feathered ear is the first place to tangle.

Trim the hair between the pads. The breed is not clipped — the coat is meant to grow naturally.

A drop ear does not ventilate well, so ear infections are common. A weekly check is enough.

Feeding

An adult eats roughly 120–200 g of dry food a day in two meals. The breed puts on weight easily, and in a dog with a heart defect every extra kilo is a direct burden.

You should be able to feel the ribs. Treats count towards the daily ration.

Health — and why it matters more here than usual

The Cavalier is a beautiful, gentle dog with two serious inherited problems that are widespread in the population. That is not a reason to avoid the breed; it is a reason to choose a breeder by their health testing rather than by price.

• Myxomatous mitral valve disease (MVD) — a heart condition. It affects a large part of the breed and appears earlier in Cavaliers than in other breeds, sometimes by five years of age. It shows first as a murmur, later as coughing and tiredness. Both parents should have been heart-tested by a cardiologist, and breeding should come from lines where the murmur appears late.
• Syringomyelia and Chiari-like malformation — the back of the skull is too small for the brain and fluid-filled cavities form in the spinal cord. It shows as scratching at the neck without contact, pain and sensitivity around the head. It is diagnosed by MRI.
• Patellar luxation — a slipping kneecap.
• Eye conditions — dry eye, cataract, retinal dysplasia.
• Ear infections — a consequence of the ear shape.

What to ask the breeder: whether both parents were heart-tested by a cardiologist and at what age, whether the line is MRI-scanned for syringomyelia, and how old the ancestors were when a murmur first appeared. A good breeder answers without hedging — this is a breed where honest breeding shows up in exactly these answers.

This is not a diagnostic guide. Coughing, tiring quickly or scratching at the neck belong at the vet, not on the internet.

Anything else to consider

A Cavalier will keep you in sight all day. Anyone wanting an independent dog will be disappointed; anyone wanting a companion could not choose better.

And expect that with this breed insurance or a savings buffer pays for itself. Cardiology work-ups, heart medication and a possible MRI are not cheap, and the odds of needing them are higher here than in most breeds.