How long does behaviour change take? An honest answer

Guides · 6 min read · Not yet reviewed by a certified behaviour consultant

It's the question every owner asks, usually late at night after a hard day: how long is this going to take? You deserve an honest answer, even if it isn't the one you were hoping for. Anyone who promises your dog will be "fixed" in a set number of days is selling something. Here is what the published sources actually say.

The honest answer: usually months, and nobody can promise

For dogs who struggle alone, Dogs Trust says improvement takes weeks for some dogs and months for others [1]. Malena DeMartini, who founded the Certified Separation Anxiety Trainer programme, says there is no fixed timeline: some dogs progress in weeks, others take months, and early progress is often slow [2].

For reactivity on walks, it's the same. Debra Horwitz, a veterinary behaviourist, stresses patience and gives no fixed timeline [3]. Best Friends Animal Society notes that deep fears can take a long time to change [4]. How long it takes depends on your dog, on why they react, and on how often hard moments turn up.

Even the small pieces take time. The ASPCA describes practising departure cues, like picking up your keys without leaving, many times over many weeks [5].

We know that can be hard to hear. But expecting months is kinder to you and to your dog than expecting weeks and feeling like you've failed.

Progress is a wavy line, not a straight one

If you drew your dog's progress, it wouldn't look like a staircase. It would look more like a wave that slowly drifts upward, with dips along the way. Dogs Trust says plainly that progress is not linear [6].

There are good reasons for the dips. After a big reaction, Dogs Trust explains, stress hormones can take 48 to 72 hours to settle [6]. The AKC notes that for some dogs the effects of stress can last days or longer [7]. A busy weekend, a visitor or a noisy week can all show up as a harder few days, and none of that undoes the work you've done.

Setbacks are part of it

A hard session is not the end of the world, and it's not a sign that you've ruined everything. The advice from welfare charities is calm and practical. The RSPCA says that if your dog struggles, go back to the last stage that worked and build from there [8]. The ASPCA says to back up when you see signs of stress [5].

Going back a step can feel like going back to square one. It isn't. You know far more about your dog than you did on day one, and so does your plan. Stepping back is how you move forward again.

More practice doesn't make it faster

When you're desperate for change, it's tempting to train every day, twice a day. DeMartini recommends separation training five days a week with two days off, explaining that more training doesn't make progress faster and that rest helps a dog take in what they've learned [9].

Rest days are not lost days. They are part of the work.

What progress can look like week to week

Because the big picture changes slowly, it helps to know what small signs to look for. These are the kinds of things owners can notice. Not every dog will show all of them, and they won't arrive in a neat order.

With time alone:

• The time before the first small sign of worry, like pacing or lip licking, gets a little longer on some days.
• Your dog seems a little less bothered when you pick up your keys or put on your coat.
• Your dog eats a chew while you're out that they used to ignore. Very anxious dogs often won't eat when alone, so this is worth noticing [5].

On walks:

• Your dog can see a trigger at a distance and still take treats.
• Your dog starts looking to you when a trigger appears. The East Bay SPCA describes this as a sign the training is working [10].
• You have more calm passes in a week, even if there are still some hard ones.

Day to day, it can feel like nothing is changing. That's why it helps to write things down. In It's OK Pooch, your logs build into progress charts that show the bad weeks honestly alongside the good ones, so you can zoom out and see the shape over a couple of months rather than judging everything by yesterday.

Looking after yourself

This is long work, and it can be lonely. It's OK to feel tired, frustrated or embarrassed. It's OK to have a bad day and skip a session. Your dog doesn't need a perfect owner. They need a patient one, at a pace they can cope with.

If you'd like a plan that starts where your dog is today and moves at their pace, you can get your dog's first week, free, no card.

When to get more help

Some dogs are helped by medication alongside training, and that is a decision for your vet [5][2]. If progress has stalled for a long time, or things are getting worse, please talk to your vet. Our guide on when to see a vet behaviourist explains the signs and how to find qualified help.

This guide is general information, not veterinary advice. If your dog is hurting themselves or others, talk to your vet.

Sources

1. Separation anxiety in dogs: signs, causes and how to help, Dogs Trust
2. Dog separation anxiety FAQ, Malena DeMartini, CSAT programme
3. How to Help Dogs That Are Aggressive During Leash Walking, Debra F. Horwitz, DVM, DACVB, Today's Veterinary Practice, 2015
4. 'Look at That' (LAT) Training for Reactive Dogs, Best Friends Animal Society
5. Treating Separation Anxiety in Dogs, ASPCA, 2020
6. Reactive dogs: why it happens and how to help, Dogs Trust
7. How to avoid trigger stacking in dogs, American Kennel Club
8. Training your dog to be left alone, RSPCA
9. Less Is More, Malena DeMartini, CSAT programme, 2023
10. The Science of Emotions: Desensitization and Counter Conditioning (DS/CC), East Bay SPCA, 2024

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