Few things test a new puppy owner’s patience like toilet training. The good news is that the advice from Dogs Trust and PDSA is consistent: frequent opportunities to go outside, immediate rewards and no punishment. This guide summarises what the two charities publish, and explains how their advice changes when an adult dog that was already trained starts having accidents. It is general information; anyone with concerns about a dog’s toileting should speak to a vet.
What to expect
Dogs Trust says puppies might naturally take a few months to be completely house trained without the odd accident. PDSA takes a similar line: some puppies pick up toilet training within a few days, but others take much longer, and they are bound to have accidents at first. The pace differs between individuals, so a slow start is not a sign that anything is wrong or that the owner is failing.
When to take a puppy out
Dogs Trust lists the moments when a puppy should be taken outside: after a sleep, after eating or drinking, after play or exercise, and whenever the puppy becomes very excited, for example when visitors arrive. PDSA gives a more detailed timetable: first thing in the morning, every two to three hours during the day, shortly after each meal, after waking, and during or after play sessions. PDSA also suggests learning the puppy’s own signals, such as circling or sniffing, so that accidents can be anticipated.
Rewarding success
Dogs Trust stresses giving a reward as soon as the puppy has toileted, so that the puppy knows the behaviour pleases its owner: praise plus a tasty treat. PDSA recommends lots of praise and a high-value reward such as a healthy snack, noting that reinforcement makes the behaviour more likely to be repeated. Dogs Trust also suggests saying a chosen cue word just as the puppy begins to go, so that over time it links the words with the action.
Handling accidents
Both charities advise against punishment. Dogs Trust says to resist reacting and let the puppy finish, and warns that scolding may lead a puppy to go somewhere hidden to avoid its owner. PDSA says never to punish a puppy for an accident and to clean the area thoroughly. Dogs Trust recommends a biological cleaning preparation so that the smell is completely broken down, which matters because remaining scent can draw the puppy back to the same spot.
When an adult dog starts having accidents
Dogs Trust has separate guidance for trained dogs that begin toileting indoors. It lists several possible causes: medical reasons such as urinary tract infections, bladder stones and kidney disease; emotional stress, which can cause a dog to temporarily lose control of its bladder or bowels; scent marking, which can increase with changes in the environment; and, in older dogs, cognitive dysfunction that leaves them confused about where to toilet. Its advice is to visit the vet if any change is noticed, so that medical causes can be ruled out before behaviour is addressed, and to clean with an enzymatic cleaner often sold as a pet odour remover. PDSA advises that older dogs being retrained should be taken outside every hour and rewarded, with the gaps then gradually increased, and that they may need night-time opportunities at first.
Stress, marking and asking for help
Dogs Trust names loud noises, new household members, visitors and being left alone as triggers for stress-related accidents, and says marking is a normal behaviour in which a dog leaves a small amount of urine, more often when the environment changes or a dog of the opposite sex is nearby. It also advises avoiding reacting to or punishing accidents, because this raises anxiety and can worsen the problem. PDSA says the majority of older dogs being retrained learn very quickly, and suggests asking a local vet or vet nurse for advice, who can refer on to an accredited behaviourist if needed. Progress that stalls after several weeks of consistent routines is a sensible point to ask.
Where this fits in wider puppy care
Toilet training is easiest alongside other routines: our guides to crate training and positive reinforcement cover the surrounding habits, and our puppy socialisation guide covers early experiences.
Frequently asked questions
How long does it take? Dogs Trust says a few months to be free of the odd accident; PDSA says some puppies learn in days and others take much longer.
Should I tell a puppy off for an accident? No. Both charities advise against punishment.
What if a trained adult dog starts having accidents? Dogs Trust advises a vet visit first, because medical causes are among the possible reasons.
The bottom line
Toilet training depends on frequent trips outside at predictable moments, an immediate reward for success and calm, thorough cleaning after accidents. Timelines vary from days to months, and a sudden change in a previously trained dog is a reason for a vet check rather than for punishment.
