Dogs in the Swimming Pool: Benefits, Risks and Safe Swimming

Many owners face the same question in summer: should they simply let their dog into the swimming pool, or ban it altogether? On social media, swimming with a dog often looks harmless and amusing. In practice, however, the animal’s health, temperament and the water quality all matter greatly. Acting without thinking can lead to skin complaints, gastrointestinal upset and, in the worst case, a near-drowning incident.

Why swimming in a pool is so appealing to dogs

When temperatures rise, many dogs instinctively look for water. A private pool can seem ideal: cool water, exercise and close contact with their owner. Active breeds such as Retrievers and Spaniels, along with many crossbreeds with a hunting or sporting background, often genuinely enjoy swimming.

“Swimming in a pool can provide dogs with gentle exercise and effective protection from the heat – provided the conditions and their health are right.”

Water supports the body’s weight, easing pressure on joints and tendons while allowing gentle movement for older or slightly overweight dogs too. For dogs that already enjoy splashing about, the pool can also offer mental stimulation: unfamiliar sensations, shared play and a change from the usual walk.

Benefits: when a pool can be genuinely good for a dog

In controlled circumstances, taking the plunge can offer several advantages:

• Cooling on hot days: The body can release excess heat more quickly, especially in dogs with thick or dark coats.
• Low-impact exercise: Swimming builds muscle and supports circulation without placing heavy strain on the joints – making it suitable for mild osteoarthritis.
• Mental stimulation: Water-based exercises, retrieve games or simply splashing around can often reduce stress.
• Getting used to water: Nervous but curious dogs can be introduced to water in a controlled way in a shallow area.

For dogs whose movement must be restricted after surgery or because of joint problems, swimming may form part of a sensible rehabilitation plan after consulting a vet. Many physiotherapy practices offer structured training on underwater treadmills; a private pool should only ever complement, rather than replace, professionally supervised treatment.

Risks: when a pool becomes dangerous for dogs

Although the benefits sound appealing, the downside is often underestimated. A number of factors can quickly turn water fun into a problem.

Chemicals in the water: chlorine, salt and more

Pools need disinfectants to remain hygienic. For dogs, this can mean:

• Irritated skin and eyes: Chlorine and other treatments can dry the skin, encourage itching and cause red eyes.
• Strained ears: Dogs with floppy ears or narrow ear canals have a significantly higher risk of ear infections.
• Problems from drinking pool water: Many dogs automatically swallow water while splashing or swimming, while others deliberately drink it.

Even small quantities may cause gastrointestinal problems, including diarrhoea, vomiting, flatulence and excessive drooling. If a dog drinks heavily or spends a very long time in the water, there is a risk of so-called water intoxication – a dangerous imbalance of minerals in the blood that requires veterinary treatment.

The risk of exhaustion and drowning

Not every dog is naturally a confident swimmer. Flat-faced breeds such as Pugs, French Bulldogs and English Bulldogs are particularly disadvantaged anatomically: they have short muzzles, narrow airways and often restricted breathing. In water, they are more likely to panic, swallow more water and become exhausted sooner.

Very small, heavy or exceptionally muscular dogs can also struggle to stay afloat for long periods. Owners who overestimate their dog’s abilities or repeatedly send it after a ball without allowing breaks are exposing it to an unnecessary risk.

When a dog should not go into the pool

There are clear situations in which swimming should be off limits, no matter how hot the weather is.

• Open wounds or skin conditions: Chlorine and salt can irritate damaged skin and worsen inflammation.
• Heart or respiratory conditions: The strain caused by cold water, excitement and exercise may trigger circulatory problems.
• Severe excess weight, advanced age or puppyhood: The body reaches its limits more quickly, increasing the risks.
• Fear of water: A dog that reacts in panic should not be forced into water “for its own good”.
• A pool that is difficult to leave: Steep sides without a ramp or wide steps make getting out difficult.
• Harshly dosed or unknown chemicals: Strong-smelling water, burning eyes or skin irritation in people are clear warning signs.

“If the dog shows stress, a tense posture or desperately tries to reach the edge, the swimming session is over – safety comes first.”

Conditions for safe swimming in a pool with dogs

Anyone wishing to let their dog into the pool safely should follow a few basic rules. They can be used as a practical checklist:

Condition	What owners should check
Health status	No open wounds, no recent operation, stable heart and respiratory function, and ideally veterinary advice where there are existing conditions.
Dog’s temperament	The dog appears curious, stays calm near the pool and shows no panic reactions or attempts to flee.
Pool equipment	Shallow steps or a ramp, a non-slip entry and at least one point where the dog can get out safely without help.
Water quality	Moderate chlorination, a pH value within the normal range, no strong smells and no visible contamination.
Supervision	The dog is never left alone in the water; the owner remains within reach and stops the activity in good time.
Care afterwards	Rinse the dog with clean water, dry its coat and carefully wipe out the ears in particular.

At what age can dogs go into a pool?

Puppies should not enter deeper water until their bones and joints have developed a basic level of stability. Around four to five months is a useful guide. At this age, many young dogs can begin learning to swim, but only in short sessions, with a life jacket and direct supervision.

For much younger or less confident dogs, shallow plastic paddling pools in the garden are more suitable. The water should reach no higher than the dog’s belly, allowing it to get out at any time while still cooling down. Such paddling pools are also a safe alternative to a large swimming pool for brachycephalic breeds.

Can a dog swim in the same pool as people?

In principle, there is no reason why dogs and people cannot swim in the same pool, as long as hygiene and safety remain the priority. Those who clean the pool regularly, check the filter and water values, and limit swimming time can combine both human cooling off and canine fun.

It is still worth honestly considering the following points:

• Does the dog tolerate contact with pool water, or does it develop persistent itching afterwards?
• Do family members react sensitively to dog hair or possible germs in the water?
• Is there enough space to ensure that children and the dog do not crowd one another?
• Is the dog sociable and calm when people jump in, dive or make loud noises?

As soon as the dog becomes tense, growls, frantically chases swimming children or tries to put everything in its mouth, clear rules are needed or, if necessary, separate swimming times.

Practical tips for safe pool swimming with a dog

A few straightforward measures can significantly reduce the risk:

• Introduce the water gradually: begin with paws only, then belly depth, and allow proper swimming only later.
• Use a life jacket, particularly for nervous, heavy or flat-faced dogs.
• Limit swimming to a few minutes at a time, followed by a break in the shade with fresh drinking water.
• Show the dog a clear exit point and leave the pool together there repeatedly, so it can find its way.
• Keep ball games in the water moderate – sustained exertion can easily lead to overexertion.

Owners with several dogs should avoid letting all of them into a small pool at once. Competition over toys or closeness to the owner can otherwise lead to squabbles more quickly – and that is especially risky in water.

What many owners overlook: ears, coat and hidden consequences

A brief health check is worthwhile after every swim. Dogs’ ears need to be dried thoroughly, especially where they have long floppy ears or dense hair in the ear canal. Moisture encourages bacterial growth and can result in painful infections that usually need medication.

The coat should not remain wet for hours either. Moisture can become trapped beneath a dense undercoat, causing the skin to soften and creating ideal conditions for hot spots – intensely itchy, weeping areas of inflammation. Getting the dog used to a hairdryer or a highly absorbent towel can help prevent this.

Precisely because swimming in a pool looks so harmless in photographs and clips, it is important to pay close attention to the risks and to the individual dog’s signals. A dog that enjoys swimming, can swim safely, has healthy skin and is supervised properly may genuinely enjoy the pool in summer. For dogs with sensitive skin, breathing difficulties or obvious insecurity, shaded spots, a shallow tub of tap water and cool walks in the morning or evening are clearly the better option.