01/04/2026
Now Spring is well on it's way we have had some equiries from people asking if they can do extra hydrotherapy at home using a bath, paddling pool, or natural water source.
We completely understand the motivation behind this — when your dog is recovering from injury or managing a long-term condition, it’s natural to want to do everything possible to help them feel better.
However, hydrotherapy is a clinical rehabilitation treatment, not simply exercise in water. When carried out without proper training, assessment and supervision, it can unfortunately cause more harm than good.
Hydrotherapy Is Highly Skilled Rehabilitation
Professional canine hydrotherapists undergo extensive training in canine anatomy, biomechanics, pathology and rehabilitation principles. Water has powerful effects on the body — including resistance, buoyancy, hydrostatic pressure and temperature — and these forces must be carefully controlled to ensure they benefit the dog rather than overload already vulnerable tissues.
One key factor many people don’t realise is that water is around 800 times denser than air. This means even small movements in water create significant resistance and force through the limbs and joints.
Without correct support and positioning, a limb can very easily twist, overextend, or abduct (move away from the body) in ways that place abnormal stress on joints, ligaments and soft tissues. Even relatively mild forces applied in the wrong direction can aggravate an existing injury or potentially create a new one.
At Barkers K9 Hydro-Physio, our team has a deep understanding of canine biomechanics, injury mechanisms and surgical repair techniques. We are trained to recognise subtle changes in movement and to both see and feel when a limb is not moving correctly in the water.
When this happens, targeted manual support is applied to guide the limb safely and prevent unsafe joint loading. This level of monitoring is essential to ensure rehabilitation supports healing rather than risking further injury.
If you have already invested significant veterinary time, care and expense into your dog’s recovery, the last thing you want is for that progress to be undone in seconds by an incorrect movement in the water.
Monitoring Is Essential
During professional hydrotherapy sessions, dogs are continuously monitored.
Water temperature must be carefully controlled, as temperatures that are too warm or too cool can increase inflammation, fatigue muscles, or place unnecessary strain on the cardiovascular system.
Hydrostatic pressure — the pressure exerted by water on the body — also affects circulation and breathing. Because of this, trained practitioners monitor indicators such as heart rate, respiration and capillary refill time throughout a session.
Natural Water Sources Are Not Suitable
Some owners also consider taking their dog swimming in lakes, rivers, or the sea as a way of providing hydrotherapy. Unfortunately, these environments present many of the same risks as attempting hydrotherapy at home — and several additional ones.
Natural water sources cannot provide controlled depth, resistance, temperature or safe positioning, and surfaces may be slippery or uneven. More importantly, water temperature in natural environments is often far colder than is appropriate for rehabilitation, even during the summer months.
Cold water causes blood vessels to constrict, reducing blood flow to muscles and soft tissues. When this happens, the muscles cannot work efficiently, which directly undermines a primary goal of hydrotherapy — controlled muscle strengthening.
In some cases, sudden exposure to cold water can also trigger muscle cramping. If this occurs while swimming, the dog may suddenly be unable to move effectively in the water, which can create a very dangerous situation.
This risk is even greater for older dogs or those recovering from injury, as they may not be able to generate enough movement to maintain body temperature in cold water.
For these reasons, natural swimming is not a safe substitute for clinical hydrotherapy.
Session Length Is Carefully Controlled
Another important factor is time in the water.
A qualified hydrotherapist determines how long a dog should exercise based on their condition, fitness level, and stage of rehabilitation. Too much time in the water can lead to muscle fatigue, ligament strain, joint overload, or increased pain after the session.
These issues are not always immediately obvious and can negatively affect a dog’s recovery.
Every Session Includes Clinical Checks
Professional hydrotherapy is not just about the time spent in the pool or treadmill.
Each session begins with an assessment of the dog’s comfort, gait, muscle condition and joint stability. The dog is then reassessed afterwards to ensure there has been no adverse reaction, soreness, or change in movement following treatment.
Why Baths and Home Setups Are Not Suitable
A domestic bath or paddling pool simply cannot provide the controlled environment required for safe hydrotherapy. At home it is not possible to accurately manage:
• water depth
• resistance levels
• temperature
• safe positioning
• slip prevention
• structured progression of exercise
There is also a much higher risk of slipping, panic, or incorrect loading through the limbs.
The Bottom Line
Hydrotherapy can be an incredibly valuable rehabilitation tool when carried out correctly by trained professionals working alongside veterinary guidance.
However, attempting to replicate hydrotherapy at home or in natural water environments can unintentionally place a dog at risk.
If you think your dog may benefit from hydrotherapy, the safest option is always to seek advice from a qualified canine hydrotherapist who can assess your dog properly and develop a treatment plan that supports recovery safely.
At Barkers K9 Hydro-Physio, we are always happy to advise owners on whether hydrotherapy may be appropriate for their dog.