Hydrotherapy for Bursitis: Water-Based Relief for Inflamed Joints

Bursitis is the inflammation of a bursa — a small, fluid-filled sac that cushions bones, tendons, and muscles near joints. When a bursa becomes inflamed through overuse, injury, or underlying conditions like gout or rheumatoid arthritis, the result is localised pain, swelling, warmth, and restricted movement. The shoulder, hip, elbow, and knee are the most commonly affected joints. Hydrotherapy addresses bursitis through temperature-based inflammation management, buoyancy-supported exercise that reduces joint loading, and hydrostatic pressure that helps control swelling.

Why Water Works for Bursitis

Bursitis creates a painful cycle: inflammation restricts movement, lack of movement weakens surrounding muscles, weak muscles increase stress on the joint, and increased stress perpetuates the inflammation. Water therapy breaks this cycle by allowing pain-free movement and exercise while simultaneously addressing the inflammatory component.

• Buoyancy reduces joint loading — In chest-deep water, buoyancy supports approximately 80% of your body weight. For weight-bearing joints like hips and knees, this dramatically reduces the compressive forces on the inflamed bursa. For shoulder bursitis, water buoyancy assists arm movements that would be too painful against gravity. The 2014 review by Mooventhan and Nivethitha confirmed that water buoyancy “reduces the weight that joints, bones, and muscles have to bear” and warmth “reduces swelling and reduces load on painful joints” [1].
• Hydrostatic pressure reduces swelling — Water immersion creates uniform pressure on the tissues surrounding the inflamed bursa. This hydrostatic pressure helps reduce oedema and limits further fluid accumulation within the bursa. The effect is similar to compression wrapping, but applied evenly and comfortably across the entire immersed area.
• Warm water relaxes guarding muscles — When a bursa is inflamed, the surrounding muscles tighten protectively, limiting range of motion and creating secondary muscle pain. Warm water (33-36°C) relaxes these guarding muscles, restoring range of motion that is lost to muscle tension rather than structural damage.
• Cold water controls acute inflammation — During acute bursitis flare-ups, cold water immersion (10-15°C) constricts blood vessels around the inflamed bursa, reducing blood flow to the area and limiting the inflammatory cascade. Research reviewed by Mooventhan and Nivethitha documented that cold water immersion below 15°C significantly reduces inflammation markers and pain perception [1].
• Progressive resistance — Water provides natural resistance to all movements. As bursitis improves and range of motion increases, the water automatically provides greater resistance (faster movements encounter more resistance). This allows gradual, self-regulating strengthening without needing to add weights or equipment.
• Improved circulation for healing — Warm water vasodilation increases blood flow to the tissues surrounding the inflamed bursa. Better circulation delivers anti-inflammatory molecules and nutrients while removing inflammatory waste products, supporting natural healing.

What the Research Shows

While bursitis-specific aquatic therapy studies are limited, the evidence from broader musculoskeletal and joint inflammation research strongly supports hydrotherapy for this condition.

The 2014 systematic review by Mooventhan and Nivethitha in the North American Journal of Medical Sciences documented that hydrotherapy produces measurable effects across multiple body systems relevant to bursitis: reduced joint loading through buoyancy, decreased inflammation through temperature effects and hydrostatic pressure, improved circulation, and reduced muscle tension and pain perception [1].

The 2023 meta-analysis published in the Journal of Orthopaedic Surgery and Research, reviewing 32 randomised controlled trials with over 2,200 participants with chronic musculoskeletal conditions, concluded that aquatic exercise significantly reduces pain and improves physical function compared to no treatment, with better adherence and fewer flare-ups than land-based exercise [2].

Research on aquatic therapy for conditions with similar pathophysiology to bursitis — including tendinitis, arthritis, and frozen shoulder — consistently demonstrates that water-based exercise produces equivalent or better outcomes than land-based approaches, with the critical advantage of reduced pain during exercise. This translates to better exercise adherence, which is the single most important factor in bursitis recovery.

Cold water immersion research, as reviewed in the Mooventhan and Nivethitha paper, shows that immersion at temperatures below 15°C “significantly lowered ratings of fatigue and potentially improved ratings of physical recovery” with “reduction in delayed onset muscle soreness at 24, 48, 72, and 96 h follow-ups” [1]. These anti-inflammatory and analgesic effects are directly applicable to acute bursitis management.

Hydrotherapy Exercises by Bursitis Location

Shoulder Bursitis (Subacromial Bursitis)

The subacromial bursa sits between the rotator cuff tendons and the acromion bone. When inflamed, raising the arm becomes painful, especially between 60-120° of elevation (the “painful arc”). Water buoyancy assists arm elevation, allowing you to work through ranges that are too painful on land.

• Pendulum exercises — Stand in waist-deep water, bend slightly forward. Let the affected arm hang and swing gently in circles, forward/back, and side to side. Water resistance provides gentle traction on the shoulder joint. 2 minutes each direction.
• Wall slides in water — Stand facing the pool wall. Place your hands on the wall and slowly walk your fingers upward, raising the arm. Water buoyancy assists the movement. Go to the point of mild discomfort, hold 5 seconds, then slide back down. 10 repetitions.
• Arm sweeps at water level — Stand in chest-deep water. Sweep the affected arm forward to shoulder height, then out to the side, then back. Water buoyancy supports the arm at shoulder height — the exact range where bursitis pain is worst on land. 10 sweeps each direction.
• External rotation — Stand with the affected arm at your side, elbow bent 90°. Rotate the forearm outward against the water resistance. 3 sets of 10. Strengthens the rotator cuff muscles that stabilise the shoulder and decompress the subacromial space.
• Scapular squeezes — Stand in chest-deep water, arms at your sides. Squeeze your shoulder blades together, hold 5 seconds, release. 15 repetitions. Strengthens the scapular stabilisers that help create space under the acromion.

Hip Bursitis (Trochanteric Bursitis)

The trochanteric bursa sits on the outer point of the hip. Inflammation here causes lateral hip pain that often worsens with walking, climbing stairs, or lying on the affected side. Water buoyancy reduces the body weight pressing down on the hip joint during exercise.

• Water walking — Walk forward, backward, and sideways in chest-deep water. Buoyancy reduces hip joint loading by approximately 80%. Focus on symmetrical gait and controlled stride length. 10 minutes.
• Standing hip abduction — Stand near the pool wall (for balance). Lift the affected leg sideways against water resistance. 3 sets of 10. This strengthens the gluteus medius — the muscle whose weakness is a primary contributor to trochanteric bursitis.
• Clamshells — Stand in chest-deep water with knees slightly bent. Rotate the affected hip outward (like opening a clamshell) against water resistance. 3 sets of 10. Targets the deep hip external rotators.
• Hip circles — Stand on the unaffected leg (hold the wall). Circle the affected hip in large, slow circles. 10 circles each direction. Mobilises the hip joint and stretches the iliotibial band and hip flexors.
• Deep-water cycling — Use a noodle or buoyancy belt in deep water. Pedal with a cycling motion. This provides hip mobility through a full range without any compression loading on the trochanteric bursa. 5-10 minutes.

Knee Bursitis (Prepatellar or Pes Anserine Bursitis)

Knee bursitis causes pain at the front (prepatellar) or inner side (pes anserine) of the knee. Water buoyancy reduces the compressive forces through the knee during exercise.

• Water walking with high knees — Walk in chest-deep water, lifting knees higher than normal with each step. Water resistance strengthens the quadriceps and hip flexors while buoyancy protects the inflamed bursa. 5 minutes.
• Straight leg raises — Stand near the wall. Lift the affected leg straight forward against water resistance. 3 sets of 10. Strengthens the quadriceps without bending the knee (which can compress the prepatellar bursa).
• Hamstring curls — Stand near the wall. Bend the affected knee, bringing the heel toward the buttock against water resistance. 3 sets of 10. Strengthens the hamstrings, which support knee stability.
• Water cycling — Sit on the pool steps or use a noodle in deep water. Cycle the legs through a pedalling motion. This provides gentle knee flexion and extension through a controlled range. 5-10 minutes.

Elbow Bursitis (Olecranon Bursitis)

• Warm water soak with gentle flexion/extension — Immerse the elbow in warm water. Slowly bend and straighten the arm. Water provides gentle resistance in both directions. 10 repetitions, 3 sets.
• Forearm rotation — With the elbow submerged, rotate the forearm palm-up, then palm-down. Water resistance strengthens the rotational muscles. 10 repetitions each direction.
• Wrist curls in water — With the forearm resting on the pool edge, submerge the hand. Curl the wrist up and down against water resistance. Strengthens the forearm muscles that support the elbow. 3 sets of 10.

Home-Based Water Therapy for Bursitis

• Ice water immersion for acute flare-ups — Fill a basin with cold water and ice (10-15°C). Immerse the affected joint (for accessible joints like elbows, wrists, or feet) for 10-15 minutes. For hips and shoulders, apply ice packs or use a cold shower directed at the inflamed area. Cold therapy is most effective during the first 48-72 hours of an acute flare-up.
• Contrast therapy — For chronic or subacute bursitis, alternate warm (38-40°C) and cold (10-15°C) applications. 3 minutes warm, 1 minute cold, repeated 3-4 times. This creates a vascular pumping effect that reduces inflammation while promoting circulation and healing.
• Warm bath soaks — For hip or full-body bursitis relief, a warm bath (37-39°C) with Epsom salt provides hydrostatic pressure, warmth, and relaxation. 15-20 minutes.
• Community pool exercise — Regular pool sessions (2-3 times per week) provide the buoyancy-supported exercise environment that is ideal for bursitis rehabilitation. Even simple water walking for 20-30 minutes reduces joint loading while maintaining cardiovascular fitness and muscle strength.
• Shower hydrotherapy — Direct a warm shower stream at the affected joint for 3-5 minutes, then switch to cool water for 30 seconds. The directed water pressure provides a gentle massage effect, and the temperature contrast promotes circulation.

When to Avoid Hydrotherapy for Bursitis

• Septic bursitis — If the bursa is infected (red, hot, very swollen, with fever), this is a medical emergency requiring antibiotics and possibly surgical drainage. Do not use warm water therapy on an infected bursa — heat can worsen the infection. Seek medical attention immediately.
• Open wounds or skin breakdown — Do not immerse in a pool until fully healed.
• Acute gout flare — If bursitis is caused by a gout flare, the joint may be too sensitive for exercise. Cold water immersion can help manage pain, but active exercise should wait until the acute gout attack subsides.
• Undiagnosed joint swelling — If you have significant joint swelling that has not been evaluated by a doctor, get a diagnosis before starting hydrotherapy. Joint swelling can indicate conditions (infection, fracture, tumour) that require specific medical treatment.

Frequently Asked Questions

Is heat or cold better for bursitis?

Both have their place, and the best choice depends on the stage of bursitis. During an acute flare-up (first 48-72 hours) with significant swelling and heat, cold therapy is more appropriate — it reduces inflammation and numbs pain. For chronic bursitis or subacute recovery, warm water therapy helps relax tight muscles, improve range of motion, and increase blood flow for healing. Contrast therapy (alternating warm and cold) is often the most effective approach for ongoing bursitis management.

Can I swim with bursitis?

It depends on the location and severity. For hip bursitis, swimming is generally excellent because it eliminates weight-bearing stress. For shoulder bursitis, some strokes (particularly butterfly and freestyle) may aggravate subacromial inflammation. Backstroke is usually the best tolerated stroke for shoulder bursitis. For knee bursitis, swimming is generally safe, though breaststroke kick may aggravate pes anserine bursitis. Listen to your body — if a particular movement increases pain, modify or avoid it.

How long does it take for hydrotherapy to help bursitis?

Most people notice some pain relief from the first warm water session. Meaningful improvement in range of motion and function typically develops over 2-4 weeks of consistent water therapy (3-4 sessions per week). Complete resolution of bursitis generally takes 4-8 weeks with comprehensive treatment, though some cases take longer. Chronic bursitis that has been present for months may require several months of consistent rehabilitation.

Should I rest or exercise with bursitis?

Modified exercise is almost always better than complete rest for bursitis. Complete rest leads to muscle weakness, joint stiffness, and deconditioning — all of which make bursitis worse in the long run. The key is to exercise within pain tolerance and avoid the specific activities that caused or aggravate the bursitis. Aquatic exercise is ideal because the buoyancy reduces joint loading enough to allow pain-free movement and strengthening. Rest from aggravating activities, exercise in the pool.

Related Reading

• Hydrotherapy for Arthritis
• Hydrotherapy for Joint Pain Relief
• Contrast Water Therapy: The Science Behind Hot-Cold Alternation
• Hydrotherapy for Health Conditions A-Z

Always consult a healthcare professional if you suspect septic bursitis (infected bursa) or if your symptoms do not improve with conservative treatment. See our Medical Disclaimer.

Sources

[1] Mooventhan, A., & Nivethitha, L. (2014). Scientific Evidence-Based Effects of Hydrotherapy on Various Systems of the Body. North American Journal of Medical Sciences, 6(5), 199-209. https://pmc.ncbi.nlm.nih.gov/articles/PMC4049052/

[2] Journal of Orthopaedic Surgery and Research (2023). Efficacy of aquatic exercise in chronic musculoskeletal disorders: A meta-analysis of 32 randomized controlled trials.

[3] Biundo, J.J. (2018). Bursitis, tendinitis, and other periarticular disorders. Goldman-Cecil Medicine, 26th ed.