Separation Anxiety in Dogs and Cats: Excessive Barking, Appetite Changes & Behaviour Care [2025]
Pets may become anxious or destructive when left alone and need behaviour training.
When to See a Vet
Seek immediate veterinary care (emergency)
- •Persistent loud howling for more than six hours without stopping
- •Ongoing destruction of furniture, doors, or windows when left alone
- •Prolonged refusal to eat or clear signs of dehydration
Schedule a veterinary appointment as soon as possible (within 24-72 hours)
- •Brief but frequent barking when left alone
- •Reduced food intake or occasionally refusing food for one day
- •More clingy than usual or persistently avoiding the owner
01What symptoms suggest something is wrong?
Separation anxiety often causes behavioural and physical changes when an owner leaves or during even brief separations.
- A clear drop in food intake or suddenly refusing meals
- Repeated vomiting or signs of digestive upset
- Diarrhoea or changes in toileting habits and stool shape
- Possible signs of dehydration caused by vomiting or diarrhoea
- Low mood, reduced activity or unusually clingy behaviour
- Excessive barking, scratching, chewing or destructive behaviour during separation
- If signs persist or worsen, arrange a veterinary consultation
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02How can I assess abnormalities at home? Key observations and when to seek urgent care
Detailed notes on behaviour and physical changes at home can help your vet identify the cause more quickly.
- Record how much your pet eats at each meal and any changes in meal times
- Count vomiting episodes, note the timing, and record whether there is blood or foreign material
- Observe and record changes in toileting frequency and stool shape
- Track activity level, sleep patterns, and clingy or avoidant behaviour
- Watch for changes in water intake and any signs of dehydration
- Record your pet's behaviour during separation and bring the video to the vet visit
03How will the vet diagnose it? Common tests and assessments
Your vet will first use a full behaviour history and physical examination to rule out medical problems, then assess behavioural causes.
A full physical examination to rule out underlying disease or sources of pain
Blood tests and biochemistry to rule out internal medical causes
Further imaging, such as CT or MRI, if needed to check for brain or organ disease
Endoscopy or tissue testing only when organ disease is suspected
A behaviour history questionnaire and observation videos are important diagnostic evidence
Assessment at a clinic or hospital with behavioural medicine experience is recommended
04How is it treated and managed after diagnosis? Medication, diet adjustments and care guide
Treatment usually combines environmental changes, behaviour training, and medication or supportive therapy when needed, with regular follow-up.
- Adjust the home environment and provide alternative activities that help your pet feel secure
- Create a gradual separation training plan with positive reinforcement
- Discuss with your vet whether medication or supportive therapies may be needed
- Schedule follow-up visits as appropriate to assess behaviour improvement and side effects
- Adjust diet and home care according to your pet's individual needs
- If signs do not improve, referral to a veterinary behaviour specialist or experienced trainer is recommended
05What should I prepare before seeing the vet? Key information that helps clarify the cause
This content is for reference only and cannot replace a professional veterinary diagnosis. If your pet shows signs of illness, please seek veterinary care promptly.