Short answer: Hydrotherapy, also called aquatic physiotherapy, is exercise in a warm pool led by a physiotherapist. For older people, the warmth and buoyancy can ease stiff joints, relax muscles and make movement easier and less frightening. A warm bath at home is not the same treatment, but warm water and spa jets can still help with comfort and relaxation.
What hydrotherapy is
In the NHS, hydrotherapy is a form of physiotherapy carried out in a specially heated pool, usually kept at around 33 to 36°C. That is noticeably warmer than a public swimming pool. A physiotherapist guides the person through slow, controlled exercises, stretches and relaxation, either one to one or in a small group.
The pools are usually shallow, and you do not need to be able to swim. Staff help people in and out, often using steps with rails or a pool hoist.
Hydrotherapy is a clinical treatment. It is planned around the person's condition and goals, which is what separates it from a warm bath or a swim at the leisure centre.
The main advantages for older people
Warmth that eases stiffness
Warm water relaxes tight muscles and can make stiff joints feel easier to move. Many older people with arthritis or long term joint pain find they can move further in warm water than they can on dry land.
Buoyancy takes the weight off
Water supports part of the body's weight, so hips, knees and the lower back carry less load. Someone who struggles to stand for long or walk far on land may be able to practise walking or balance exercises in the pool with less pain.
Gentle resistance builds strength
Moving through water takes effort, so exercises can strengthen muscles without heavy weights. The faster you move, the more resistance you feel, so a physiotherapist can make the exercise easier or harder simply by changing the pace.
Confidence and balance
Falls are a real worry for many older people. Water slows movement down and gives support, so people can practise balance and walking with less fear. That confidence can carry over into everyday life.
Relaxation and wellbeing
Many people simply feel better after a session. Being in warm water, moving more freely and spending time with others in a group can lift mood as well as easing aches.
Who might benefit, and who should check first
Physiotherapists may suggest hydrotherapy for people with arthritis and other joint conditions, back pain, some neurological conditions, or after certain operations and injuries. It is not suitable for everyone.
Warm water widens blood vessels and can affect blood pressure. Anyone with heart problems, low blood pressure or a skin condition should ask their GP before starting hydrotherapy or regular hot baths. Please check with your GP, physiotherapist or occupational therapist (OT) before trying any new form of exercise or therapy, as they can advise what is safe for you.
How to access hydrotherapy
NHS hydrotherapy is usually arranged by referral, so the first step is to talk to your GP or physiotherapist. Some private clinics and leisure centres also offer warm water sessions. If you have completed a course of treatment, your physiotherapist may suggest exercises you can continue in a local pool.
Is a warm bath at home the same as hydrotherapy?
No. A bath at home does not give you the space to exercise, the depth to support your body, or the guidance of a physiotherapist. It would be wrong to promise the same results.
What a home bath can offer is some of the comfort of warm water. Many older people find a warm bath helps them relax, eases stiff joints before bed and makes them feel more comfortable. Spa jets can add a gentle massaging effect that some people enjoy.
| NHS hydrotherapy | Warm bath at home | |
|---|---|---|
| Who leads it | A physiotherapist | You, or you with a carer |
| Water temperature | Controlled, around 33 to 36°C | Whatever you choose, ideally warm rather than hot |
| Exercise | Planned exercises in a pool | Gentle movement only, as advised by a physiotherapist |
| Main benefit | Treatment for a specific condition | Comfort, relaxation and hygiene |
| How often | A set course of sessions | As often as you like and can manage safely |
The difficulty for many people is that just as joint pain makes a warm bath more appealing, stepping over the side of a standard bath becomes harder and riskier. Our guide to easy access baths for the elderly compares the options, from bath lifts and boards to walk-in baths.
Bringing warm water comfort home with a walk-in bath
A walk-in bath has a watertight door in the side, so you step over a low threshold rather than climbing over a high bath side. You sit on a built-in seat at a comfortable height, close the door, and fill the bath around you. Our article on how mobility walk-in baths work explains filling, draining and the different features in more detail.
Features worth considering
- Spa or whirlpool jets: for a gentle massaging effect.
- Thermostatic mixing: keeps the water at a safe, steady temperature and reduces the risk of scalding.
- Heated seat: helps you stay warm while the bath fills and drains, because you need to stay seated with the door closed while it does.
- Powered seat: lowers you into the water and raises you up again if sitting down and standing up is hard.
- Grab rails and easy to grip controls: placed where you can reach them while seated.
Typical costs and VAT relief
Installed walk-in baths typically cost about £6,000 to £12,000 or more, with powered seat, spa and heated seat models at the top end. These are general UK ranges from specialist suppliers, not quotes. A supply-only walk-in bath can be advertised from around £1,500, but that excludes fitting.
People aged 60 or over can pay a reduced 5% rate of VAT on the supply and installation of a walk-in bath with a sealable door by the same installer. If the work is needed because of a chronic illness or disability, adapting a bathroom in your own home can be zero rated for VAT instead. Check with HMRC or your installer about what applies to you.
If you would like to see the walk-in baths we supply and fit across Scotland, visit our walk-in baths page.
Bathing safely at home
Whether you use a walk-in bath or a standard one, a few simple habits make warm water bathing safer:
- Keep it warm, not hot. Very hot water can make you feel faint and dries out older skin.
- Do not stay in too long. Get out if you feel dizzy, light-headed or unwell.
- Sit for a moment before standing. Blood pressure can drop when you stand up from warm water.
- Use rails and non-slip surfaces. Wet floors and bath bottoms are a common place for falls.
- Tell someone. If you live alone or have a health condition, let someone know when you are bathing, or keep a personal alarm within reach.
- Look after your skin. Use a gentle soap substitute, pat dry and moisturise afterwards.
Bathing does not need to happen every day to keep you clean and comfortable. Our guide on how often a disabled person should shower explains how a daily strip wash and a full bath or shower a few times a week suits many older people.
Missing the comfort of a warm bath? Our family run team can design a bathroom around a walk-in bath that you can get in and out of safely. Start with a free 3D design and a no-obligation quote. Request your free design.
Frequently asked questions
Can you get hydrotherapy on the NHS?
Yes, hydrotherapy is offered by NHS physiotherapy services in some areas, usually by referral. Ask your GP or physiotherapist whether it is suitable for you and available locally.
What temperature is a hydrotherapy pool?
NHS hydrotherapy pools are usually kept at around 33 to 36°C, which is warmer than a normal swimming pool. The warmth helps muscles relax and joints move more easily.
Do I need to be able to swim for hydrotherapy?
No. Hydrotherapy pools are usually shallow and the exercises are done standing, sitting or supported in the water, with a physiotherapist present.
Is a spa bath the same as hydrotherapy?
No. A spa bath at home can help you relax and ease stiffness, but it is not a clinical treatment. Hydrotherapy is planned exercise in a warm pool, led by a physiotherapist.
