Leg swelling usually improves with a combination of elevation, movement, compression, and dietary changes. The right approach depends on what’s causing the swelling, but most people can start relieving discomfort at home while they figure out the underlying issue. If swelling appears suddenly in only one leg, that’s a different situation entirely and needs prompt medical attention.
Elevate Your Legs Above Your Heart
The simplest and most immediate thing you can do is lie down and prop your legs up so they’re above the level of your heart. This uses gravity to drain fluid that has pooled in your lower legs. Stack pillows under your calves or rest your feet on the arm of a couch. Keep them elevated for about 15 minutes, and aim to do this three to four times throughout the day.
Elevation works best as a consistent habit rather than a one-time fix. If you spend long hours sitting at a desk or standing on your feet, even short elevation breaks during the day can prevent fluid from building up. Sleeping with a pillow under your lower legs can also help overnight.
Use Compression Stockings
Compression stockings apply graduated pressure to your legs, with the tightest squeeze at the ankle and gradually less pressure moving upward. This helps push fluid back toward your heart instead of letting it settle in your feet and calves.
Over-the-counter support stockings provide light pressure and work well for mild, occasional swelling. Medical-grade compression stockings come in four classes based on how much pressure they deliver, ranging from 18 mmHg at the lightest level up to 49 mmHg or higher at the strongest. The lightest class handles minor swelling and tired legs, while higher classes are prescribed for more serious venous or lymphatic conditions. A doctor determines the right compression class based on your specific situation, including your strength, mobility, and any other health conditions you have.
Put compression stockings on first thing in the morning before swelling has a chance to develop. They’re harder to get on once your legs are already puffy.
Get Your Legs Moving
Your calf muscles act as a pump for the veins in your lower legs. Every time they contract, they squeeze blood upward toward your heart. When you sit or stand still for long stretches, that pump stops working and fluid accumulates.
Walking is the most natural way to activate this pump, but even small movements help. Ankle pumps are a simple exercise you can do from a bed, chair, or the floor: point your feet toward your knees as far as you can, then point them away from you, alternating back and forth for two to three minutes. Repeat this two to three times per hour, especially during long periods of sitting. This keeps blood circulating and reduces the risk of both swelling and blood clots.
If you have a desk job, setting a timer to stand up and walk around every 30 to 60 minutes makes a noticeable difference over the course of a day.
Cut Back on Sodium
Salt causes your body to hold onto water, which worsens swelling. For people actively managing edema, Georgetown University’s nephrology department recommends keeping daily sodium intake between 1,375 and 1,800 milligrams. That’s significantly lower than what most people consume. The average American diet contains over 3,400 milligrams per day.
The biggest sources of sodium aren’t the salt shaker on your table. They’re processed and packaged foods: canned soups, deli meats, frozen meals, bread, sauces, and restaurant food. Reading nutrition labels and cooking more meals at home are the two most effective ways to bring your sodium down. Even a moderate reduction can make a visible difference in how much your legs swell by the end of the day.
Check Your Medications
Several common medications cause leg swelling as a side effect. Blood pressure drugs are among the most frequent culprits, particularly calcium channel blockers like amlodipine, as well as beta blockers, clonidine, diltiazem, and hydralazine. Anti-inflammatory painkillers (like ibuprofen and naproxen) and hormonal medications, including birth control pills and hormone replacement therapy, can also cause fluid retention in the legs.
If your swelling started or worsened after beginning a new medication, that connection is worth bringing up with your prescriber. In some cases, adding or switching a medication can resolve the problem. For people on calcium channel blockers, for instance, adding a certain type of blood pressure drug can reduce the edema. Don’t stop any prescribed medication on your own, but knowing this is a possible cause can help you have a more productive conversation with your doctor.
How to Tell if Swelling Is Serious
Most leg swelling is gradual, affects both legs, and gets worse over the course of the day. This pattern is common and usually tied to prolonged sitting, excess sodium, medication side effects, or chronic venous insufficiency. It’s worth managing, but it’s rarely an emergency.
Swelling that appears suddenly in one leg is a different story. This can signal a deep vein thrombosis, a blood clot in one of the deep veins of the leg. The warning signs include leg pain or cramping that often starts in the calf, warmth in the affected area, tenderness, and a change in skin color to red or purple. A DVT requires urgent treatment because the clot can break loose and travel to the lungs.
Swelling that comes with shortness of breath, chest pain, or a rapid heartbeat also warrants immediate attention, as these can indicate the clot has already moved or that the heart isn’t pumping effectively.
Understanding the Severity of Your Swelling
Doctors assess swelling using a simple test: pressing a finger into the swollen area and watching what happens. If the pressure leaves a visible dent that takes time to bounce back, that’s called pitting edema, and it’s graded on a four-point scale. Grade 1 is a shallow 2-millimeter indent that rebounds immediately. Grade 2 leaves a 3 to 4 millimeter pit that fills back in within 15 seconds. Grade 3 creates a 5 to 6 millimeter pit that takes up to a minute to recover. Grade 4, the most severe, produces an 8 millimeter indent that can take two to three minutes to return to normal.
You can do a rough version of this test yourself. Press your thumb firmly into the skin over your shin or ankle for about five seconds, then release. If the indent stays for more than a few seconds, you’re dealing with at least moderate edema. Higher grades generally point to more significant fluid retention and are worth discussing with a healthcare provider, since they may reflect an issue with your heart, kidneys, liver, or venous system that needs its own treatment beyond the home measures described above.