Reducing leg edema comes down to helping your body move excess fluid out of your tissues and back into circulation. The right approach depends on what’s causing the swelling, but most people benefit from a combination of elevation, compression, movement, and dietary changes. For edema caused by an underlying condition like heart failure or kidney disease, medication that helps your body shed extra fluid is often necessary.
Why Fluid Builds Up in Your Legs
Your body constantly pushes fluid out of tiny blood vessels into surrounding tissue, then pulls it back in. Two forces control this exchange: pressure inside your blood vessels pushes fluid out, while proteins (especially one called albumin) pull fluid back in. Your lymphatic system acts as a backup drain, collecting whatever doesn’t get reabsorbed and returning it to your bloodstream.
Leg edema happens when this system gets thrown off. Sitting or standing for long periods increases pressure in your leg veins, forcing more fluid out than your body can pull back in. Damaged or weakened veins (chronic venous insufficiency) do the same thing. Heart failure, kidney disease, and liver disease all trigger your kidneys to hold onto extra sodium and water, expanding your fluid volume and worsening the problem. Low albumin levels, which can result from kidney or liver disease, reduce your blood’s ability to reabsorb fluid. And if your lymphatic system is damaged from surgery, infection, or radiation, fluid simply has nowhere to drain.
Your legs bear the brunt because gravity pulls fluid downward all day long. That’s also why the swelling often improves overnight and worsens by evening.
Elevate Your Legs Above Your Heart
Elevation is the simplest and most immediate way to reduce leg swelling. Position your legs above the level of your heart, using pillows, a recliner, or a wall for support. This reverses the gravitational pull that traps fluid in your lower legs and lets it drain back toward your core. Aim for about 15 minutes at a time, three to four times per day. Even short sessions help, and consistency matters more than doing one long session.
Use Compression Stockings
Compression stockings apply graduated pressure to your legs, squeezing tightest at the ankle and loosening as they move up. This helps push fluid upward and prevents it from pooling. The 2025 guidelines from the Society for Cardiovascular Angiography and Intervention reaffirm compression therapy as a strong recommendation for people with chronic venous disease.
Stockings come in different pressure levels measured in millimeters of mercury (mmHg). Light compression (10 to 15 mmHg) is enough to prevent swelling from prolonged sitting or standing in otherwise healthy people. A systematic review confirmed this level reduces occupational edema and related symptoms. Mid-range stockings (15 to 20 mmHg) work well for mild, recurring swelling. Medical-grade stockings (20 to 30 mmHg or higher) are typically used for chronic venous insufficiency or after a blood clot, and usually require a fitting or prescription. Knee-length stockings are sufficient for most lower leg edema.
Put them on first thing in the morning before swelling starts for the day, and remove them at night.
Activate Your Calf Muscles
Your calf muscles work like a pump for your veins. Every time they contract, they squeeze blood upward toward your heart. When you sit or stand still for hours, that pump barely fires, and fluid accumulates.
The most effective exercises target the ankle and calf directly. Toe raises (lifting your body weight onto your toes, then lowering back down) are the simplest version. Ankle circles and alternating between pointing your toes down and pulling them up toward your shin also activate the pump. Research on people with chronic venous insufficiency shows benefits from programs combining calf strengthening (2 to 3 sets of 10 to 15 repetitions), walking (even 10 to 20 minutes on a treadmill), and calf stretching. One study used a program of circular foot movements, toe raises, and alternating ankle flexion performed three times daily in sets of 15, plus a daily 3-kilometer walk.
You don’t need a formal exercise routine. Walking is inherently a calf pump exercise. If your job keeps you seated, doing ankle pumps under your desk every 30 minutes makes a noticeable difference.
Reduce Your Sodium Intake
Sodium makes your kidneys hold onto water, expanding your blood volume and increasing the pressure that pushes fluid into your tissues. Cutting sodium is one of the most effective dietary changes you can make for fluid retention.
The American Heart Association recommends no more than 1,500 mg of sodium per day for the general population. For people with heart failure, the Heart Failure Society of America suggests 2,000 to 3,000 mg daily, dropping below 2,000 mg for moderate to severe cases. Most Americans consume over 3,400 mg daily, so even a partial reduction helps. The biggest sources are restaurant meals, processed foods, canned soups, deli meats, and salty snacks. Reading nutrition labels and cooking more at home are the most practical ways to bring your intake down.
Lymphatic Drainage Massage
If your edema involves lymphatic dysfunction, a specialized type of massage can help move trapped fluid toward working lymph nodes. A therapist uses very light pressure, starting by stimulating lymph node areas in your armpits, neck, and groin to “open the gates,” then gently guiding excess fluid from the swollen area toward those nodes where it can be reabsorbed into your bloodstream. The touch is much lighter than a typical massage.
Lymphatic drainage is particularly useful for lymphedema (swelling caused by a damaged or blocked lymphatic system, often after cancer treatment or surgery). It can also help with general edema, though it works best alongside compression and elevation rather than as a standalone treatment.
When Medication Is Needed
When lifestyle changes aren’t enough, or when edema stems from heart failure, kidney disease, or liver cirrhosis, diuretics (often called “water pills”) help your kidneys flush out extra sodium and water. The type depends on the underlying cause.
Loop diuretics are the most powerful and are the standard first-line treatment for heart failure, kidney disease, and nephrotic syndrome. When these alone aren’t sufficient, a thiazide diuretic can be added to boost the effect. For liver cirrhosis with fluid buildup, an aldosterone-blocking diuretic is typically the starting treatment, sometimes combined with a loop diuretic. These medications require monitoring because they can shift your electrolyte balance, particularly potassium levels.
Diuretics only work for edema involving excess fluid volume. They won’t help, and can actually cause harm, in lymphedema or edema caused by venous insufficiency alone.
Procedures for Vein Problems
If your edema is caused by faulty leg veins that allow blood to flow backward and pool, fixing the veins themselves can resolve the swelling long-term. Current guidelines recommend ablation therapy for people with symptomatic reflux in the great saphenous vein (the large vein running up the inner leg). This minimally invasive procedure uses heat or laser energy to seal the vein shut, rerouting blood through healthier veins. Foam sclerotherapy, which involves injecting a solution that closes off varicose veins, is another option. For deeper vein blockages, stenting can open up obstructed vessels in the pelvis or abdomen that are contributing to leg swelling.
Warning Signs That Need Urgent Attention
Most leg edema is bilateral, meaning it affects both legs roughly equally. Sudden swelling in just one leg is a different situation entirely. This pattern raises concern for a deep vein thrombosis (DVT), a blood clot in a deep leg vein. DVT symptoms include swelling in one leg, pain or cramping that often starts in the calf, skin that turns red or purple, and warmth over the affected area. Some DVTs cause no symptoms at all.
The dangerous complication is when a clot breaks loose and travels to your lungs, called a pulmonary embolism. Signs include sudden shortness of breath, chest pain that worsens with deep breathing, dizziness or fainting, rapid pulse, and coughing up blood. This is a medical emergency.
Swelling that comes on suddenly in both legs, especially with shortness of breath when lying down, can signal worsening heart failure and also warrants prompt evaluation.