Why do rescue dogs get separation anxiety more often?

Many rescue dogs have already experienced being left, rehomed, or surrendered, so being alone can feel genuinely threatening rather than simply boring. They are also still learning that you are reliable. That is why slow, predictable alone-time matters so much for a newly adopted dog.

How soon can I start leaving my new rescue dog alone?

Start very short, low-key absences in the first week, before bigger worries take hold, even stepping out of sight for a few seconds counts. Build up gradually. Avoid long absences early on; if you must leave for hours, a sitter, daycare, or a trusted friend bridges the gap while you train.

Will getting a second dog fix my rescue's separation anxiety?

Usually not. The anxiety is typically about your absence specifically, so a second dog often does not resolve it and adds complexity while everyone is still settling. Work on the underlying anxiety first.

How long does it take to improve separation anxiety in a rescue?

Milder cases often improve within a few weeks of consistent, gradual practice. A dog with a harder history can take several months and may benefit from a certified separation-anxiety behaviourist or veterinary support. Progress is rarely a straight line, small, steady wins add up.

How to ease separation anxiety in a rescue dog

If your newly adopted dog falls apart the moment you reach for your keys, you are not alone, and it is not a sign you did anything wrong. For a rescue dog, being left can carry real weight, because for many of them it came right before they lost their last home. The reassuring part: separation worry usually eases with a slow, kind, consistent plan. Here is how to build it.

First, recognise the signs

Separation anxiety is more than mild boredom. Common signs include barking or howling that starts soon after you leave, pacing, drooling, destructive chewing near doors and windows, or accidents from a dog who is otherwise house-trained. A pet camera is the easiest way to see what really happens once the door closes.

Go slower with an unknown history

A rescue dog often arrives without a backstory, so you cannot know which sounds, rooms, or routines feel loaded. Assume nothing, watch their body language, and build trust before you build distance. The goal of the first weeks is simple: you leave, you come back, nothing bad happens, over and over, until it is boring.

A gentle step-by-step plan

The core idea is to make your departures calm and gradual so your dog relearns that being alone is safe.

Decouple your “leaving” cues. Pick up your keys, put on your coat, then sit back down. Repeat until those cues stop sparking worry.
Start with seconds, not hours. Step out of sight for 10-20 seconds, return calmly, and slowly stretch the time across many short sessions.
Keep arrivals and departures low-key. No emotional goodbyes or excited hellos, calm out, calm in.
Leave something good behind. A stuffed chew or food puzzle gives being alone a positive association and something to do.
Add a calming soundscape. Long-form, low-tempo music or Dog TV masks startling outside noises and gives a predictable, settled backdrop.

Calming aids that can support the work

These are supportive extras, not replacements for the gradual training above, and results vary from dog to dog.

A snug pressure wrap can help some dogs feel more secure during alone time.
A pheromone diffuser releases a synthetic copy of the appeasing signal mother dogs produce.
A den-like bed or covered crate (door open) gives a cosy place to retreat.

Always check with your veterinarian before adding any supplement to your dog’s routine.

Lean on calming sound

Research from the University of Glasgow and the Scottish SPCA found dogs were measurably calmer with music playing, more lying down, less barking, with the benefit best sustained by varying what plays. Leaving gentle, long-form audio on during short departures gives a settling rescue dog a steady, familiar backdrop.

When to get professional help

This is general information, not veterinary advice. If your dog injures themselves trying to escape, panics within seconds of your leaving, or shows no improvement after several weeks of consistent work, talk to your veterinarian or a certified, reward-based separation-anxiety behaviourist. In more difficult cases, a behaviour plan paired with veterinary support makes a real difference, and reaching out early is the kind thing to do.

New to all this? Start with our guide to helping a rescue dog settle into a new home.