Cavalier King Charles Spaniels are celebrated for their affectionate demeanor, known for being friendly, sweet, and obedient when well-socialized. They make excellent companions for families with children and other pets, and they are generally open and friendly with strangers. However, Cavaliers may display alert barking tendencies, which can become problematic if encouraged. Training to limit barking to necessary alerts is recommended to foster a tranquil environment.

Cavalier King Charles Spaniels are adaptable companions suitable for various living environments, provided they receive sufficient attention, mental stimulation, and exercise. While they adjust well to different climates, they are sensitive to extreme temperatures. Despite not being hunting dogs, they may chase, so leash them in secure areas. Due to their strong bond with their families, they dislike prolonged solitude and thrive on companionship. Without proper training and early acclimatization to solitude, they may develop separation anxiety.

Cavalier King Charles Spaniels are prone to health issues such as Mitral Valve Disease, Syringomyelia, middle ear infections, cataracts, patellar luxation, and hip dysplasia. MVD, starting as a heart murmur, may progress to heart failure at a younger age. Syringomyelia, related to skull malformation, affects the brain and spine, leading to discomfort and pain.

Preventative breeding practices and screenings are crucial for puppy health. Responsible breeders conduct tests to avoid passing on hereditary issues. Prospective owners should inquire about the health and genetic history of both parents and receive recommended evaluations for patella, hips, heart, and eyes from the National Breed Club.

Cavalier King Charles Spaniels are ideal for first-time dog owners, given their intelligence and desire to please. Their quick learning ability suits owners of any experience level. With sensitive and gentle personalities, they respond well to positive reinforcement in training. Consistent use of rewards and praise is key, as harsh tones or negative feedback can damage their bond and lead to withdrawal.

Cavalier King Charles Spaniels exhibit a range of coat colors, including Ruby, Blenheim, Black and Tan, and Tricolor. Their coats are long, silky, and slightly wavy, with moderate shedding that may increase seasonally. Regular brushing several times a week helps prevent tangles and mats. Occasional bathing is recommended, while daily brushing during shedding seasons is ideal. Additionally, nail trimming once or twice monthly, weekly ear examinations, and careful cleaning help prevent infections. Daily teeth brushing and vet cleanings as needed are crucial for dental care.

Cavalier King Charles Spaniels typically have a low to moderate activity level, enjoying daily walks and some playtime. Despite being known as companion breeds and considered among the laziest dog breeds, Cavaliers have a sporting heritage and excel in dog sports like rally, flyball, agility, and obedience. With vet clearance and once fully grown, Cavaliers can engage in agility training. They also make great therapy and emotional support dogs.

Adult Cavalier King Charles Spaniels typically have a height ranging from 12 to 13 inches and weigh between 13 and 18 pounds.

Cavalier King Charles Spaniels typically have a lifespan averaging 12 to 15 years.