Which Exercises for Knee Swelling and Fluid Buildup?

Dear Sakshi Rana ji,

Fluid in the knee, also called knee effusion, can happen after an injury, arthritis, overuse, or inflammation. Gentle exercises can help improve movement, activate the muscles around the knee, and support circulation.

However, exercises do not treat the underlying cause of knee fluid. If the swelling is severe, painful, or caused by an injury or infection, you should get the knee checked before exercising.

Gentle Exercises for Knee Fluid

1. Ankle Pumps

Lie on your back and keep the swollen leg slightly elevated on pillows. Slowly move your foot up and down, as if pressing and releasing a pedal.

• Repeat 20–30 times.

• Perform the movement gently.

• Stop if it causes pain.

This exercise activates the calf muscles and helps maintain circulation in the leg.

2. Heel Slides

Lie on your back with both legs straight. Slowly slide the affected heel toward your buttocks, bending the knee as far as comfortable.

Then slowly slide the heel back to the starting position.

• Repeat 10–15 times.

• Do not force the knee to bend.

• Stop if you experience sharp pain.

This helps maintain knee movement when swelling causes stiffness.

3. Gentle Knee Swings

Sit on a sturdy chair or table with your lower leg hanging freely. Gently swing the leg forward and backward without forcing the movement.

• Continue for around 5–10 minutes.

• Keep the movement slow and comfortable.

• Avoid this exercise if it increases swelling or pain.

Exercises to Strengthen the Knee

Once the swelling and pain are manageable, strengthening exercises can help support the knee.

4. Quadriceps Sets

Lie down with your leg straight and place a small rolled towel underneath your knee.

Gently tighten the thigh muscle while pressing the back of your knee toward the towel.

• Hold for about 5 seconds.

• Relax and repeat 10 times.

• Keep the movement comfortable.

This helps maintain strength in the thigh muscles without putting much pressure on the knee.

5. Straight Leg Raises

Lie on your back with one knee bent and the swollen leg straight. Tighten the thigh muscle and slowly lift the straight leg.

Hold it briefly and slowly lower it back down.

Start with a small number of repetitions and increase gradually if there is no increase in pain or swelling.

Low-Impact Exercises After Swelling Improves

When the knee becomes less painful and swollen, your doctor or physiotherapist may recommend low-impact activities such as

• Stationary cycling

• Swimming

• Walking in water

• Gentle walking

• Physiotherapy exercises

These activities can help maintain knee movement and muscle strength without placing excessive stress on the joint.

Other Ways to Reduce Knee Swelling

Exercises work better when combined with appropriate home care.

• Rest the knee when it is painful or significantly swollen.

• Apply an ice pack for around 15–20 minutes at a time.

• Keep the leg elevated when resting.

• Use compression only if recommended and if it does not cause numbness or increased pain.

• Avoid running, jumping, squats, or heavy exercise while the knee is significantly swollen.

• Do not continue an exercise that causes sharp or increasing pain.

When Should You Avoid Exercise?

Do not try to exercise through severe knee swelling or pain. Get medical attention if the knee is very hot, red, extremely painful, or associated with fever.

You should also see an orthopaedic doctor if swelling continues for several days, repeatedly returns, or started after a significant injury. You may need an examination or tests such as an X-ray, MRI, blood tests, or joint-fluid testing to identify the cause.

Does Knee Fluid Always Need to Be Drained?

No. Not every case of knee fluid requires drainage. Treatment depends on the underlying cause.

If the swelling is due to a minor injury or inflammation, rest, medicines, physiotherapy, and gradual exercises may be enough. If there is a large amount of fluid, infection, blood in the joint, or another significant problem, a doctor may recommend removing and testing the fluid.

How HexaHealth Can Assist You

We can connect you with experienced orthopaedic doctors and trusted partner hospitals based on your symptoms and location.

We can assist you with

• Finding an appropriate orthopaedic specialist.

• Booking a consultation.

• Finding a suitable nearby partner hospital.

• Helping you understand which tests may be required.

• Connecting you with physiotherapy services when recommended.

• Coordinating treatment if surgery or hospitalisation is required.

• Guiding you about insurance and cashless treatment options at eligible partner hospitals.

Share your city and state, your age, how long you have had knee swelling, and whether it started after an injury. We can help you find suitable treatment options.

Wishing you and your family good health always.
Warm regards,
Team HexaHealth