Understanding Behaviour and Resolving Difficulties

Curiosity or fixation?

Curiosity is usually flexible: a brief look or sniff, a loose body, looking away and responding to a familiar cue. Concern rises with sustained staring, stalking, stiff stillness, closed mouth, leaning forward or repeatedly tracking every movement. A wagging dog tail is not proof of friendliness. Increase distance before excitement grows; reward disengagement rather than waiting for a lunge.

Play or unwanted pursuit?

Comfortable play includes loose movement, pauses and both animals choosing to return. Compare what each animal does when the other stops: can they leave without being followed? One-sided chasing, cornering, hiding or repeated escape attempts indicate a problem even if the dog seems playful. Cat tail lashing, flattened ears, crouching or a tense freeze can show discomfort. A motionless cat may be overwhelmed, not accepting the interaction.

What about hissing, growling, swatting or barking?

These signals can request space or express excitement or worry. A brief hiss followed by the dog moving away and both settling can be ordinary boundary-setting. Respect it and make more room; do not punish warnings or require the cat to “stand up for itself”. Repeated swatting, barking at close range, blocked exits or escalating tension need management. Claws and bites can injure either animal, particularly eyes.

How do I stop my dog chasing my cat?

Prevent rehearsals with secure separation and supervised lead control. Work at a distance where the dog can look away; mark and reward turning towards you, settling or choosing another activity. Practise recall and disengagement away from the cat first. Increase difficulty slowly. Do not stage a chase for training, shout, spray water or use aversive collars. Management protects the cat while learning develops; a recall is not a substitute for a barrier where risk is high.

Predatory behaviour and serious risk

Quiet stalking, intense tracking, sudden pursuit, grabbing or shaking can be dangerous without barking or growling. Breed, size and previous friendship do not rule this out. If a dog has injured a cat, attempts to grab them or remains intensely focused despite distance, stop direct access and obtain a specialist assessment. A properly introduced basket muzzle may form part of a professional plan, but never makes unrestricted contact safe by itself.

Guarding, territory and subtle tension

An animal may defend food, a bed, a person or a route. Move resources apart and prevent competition rather than taking possessions away as punishment. Look for a cat waiting until the dog sleeps to eat, a dog avoiding a room, reduced play, excessive grooming or toileting changes. These signs also have medical causes. Persistent hiding or restricted movement is a welfare issue even without fighting.

What should I do after a disagreement or fight?

Avoid reaching between animals or lifting a panicking cat beside the dog. If safe, call the dog away or use a solid barrier or door to separate without placing yourself within reach; never grab collars in a fight. Keep them apart afterwards and allow recovery. Contact a vet promptly for bites, punctures, eye injuries or pain; collapse, breathing difficulty or serious injury is an emergency. Do not force a reunion to reassure yourself.

Rebuild, or seek help?

After a minor upset, identify the trigger, restore safe resources and restart at a comfortable earlier introduction stage. If reactions repeat, intensify or change suddenly, arrange a veterinary check, then ask for a practitioner with recognised dog-and-cat behaviour expertise. In the UK, ask your vet for referral to an ABTC-registered Clinical Animal Behaviourist or Veterinary Behaviourist. Elsewhere ask your vet about locally recognised qualifications. Avoid promises of a quick cure.

Related guidance

• Behaviour and body language
• Multi-dog households
• Puppy care
• Buying or adopting