The King Charles Spaniel (the English Toy Spaniel, distinct from the larger Cavalier) is a gentle, devoted, brachycephalic toy companion bred purely for the lap and the company of people. Its flat face, deep attachment, and known health concerns shape how it must be trained and cared for. Most problems come from forgetting the body or the bond. Here are the five mistakes that cause the most trouble, and what to do instead.
1. Exercising in the heat
The King Charles is brachycephalic, and its flat face means it overheats and struggles to breathe in warm weather, making heat a genuine danger. Owners who walk it hard or in the sun risk heat stroke. Keep activity gentle and confined to the cool parts of the day, watch closely for labored breathing, and never push a panting dog or leave it in a warm space.
2. Skipping alone-time conditioning
This is a pure companion breed that bonds intensely, and without independence training it readily develops separation anxiety, panicking and soiling when left. Owners who keep it constantly on their lap create the problem. Build alone-time early with short, calm absences and a positive association with being alone, so the devotion never tips into distress.
3. Choosing an unhealthy puppy
The breed carries serious cardiac (mitral valve) and breathing concerns, and a poorly-bred puppy brings heartbreak and large vet bills that no training can fix. Owners who buy on looks or price alone get caught out. Source only from breeders who health-test for heart and respiratory issues; a healthier dog is a happier, more trainable one.
4. Allowing attention barking
The King Charles is devoted and will bark for attention or alert at sounds, and unmanaged that becomes a fixed habit. Owners who respond to every demand bark reinforce it. Address alert and demand barking patterns early: reward quiet, withhold the payoff for barking, and manage the triggers.
5. Using any pressure-based training
The King Charles is gentle and soft, and harsh or pressured handling distresses it and shuts it down rather than teaching anything. Owners who push get an anxious, reluctant dog. Use calm, reward-based work only, keep sessions short and pleasant, and the breed's eagerness to please shines.
What works with King Charles Spaniels
Manage heat carefully, condition alone-time early, source from health-testing breeders, manage barking, and train gently. The common thread is respecting both the body and the bond: short, cool sessions suit the brachycephalic build, while early alone-time conditioning prevents the separation anxiety the companion temperament invites. Add gentle reward-based handling and a health-tested start, and the King Charles is a serene, devoted lap companion.
TailorPup's King Charles Spaniel plan respects the breed's physical limits and separation-anxiety risk.
Start your King Charles Spaniel's plan free at tailorpup.com →
Related: How to Train a King Charles Spaniel · Barking Solutions · Puppy Training Basics