Elevating your legs above heart level for 15 minutes, three to four times a day, is the single most effective thing you can do at home to bring down leg swelling. But if the swelling keeps coming back or appeared suddenly, there’s likely an underlying reason that determines which strategies will actually work long-term. Here’s what to do now and what to look into next.
Elevate Your Legs the Right Way
Elevation works because gravity pulls the pooled fluid in your legs back toward your heart. The key detail most people get wrong is height: your legs need to be above the level of your heart, not just propped on an ottoman. Lie flat on your back and rest your legs on a stack of pillows, a foam wedge, or up against a wall. Aim for about 15 minutes per session, three to four times throughout the day.
You’ll notice a difference even after one session, especially if your swelling is worse in the evening. The effect is temporary, though. If your legs swell again within hours of putting them down, that’s a sign something is driving the fluid accumulation and elevation alone won’t solve it.
Use Compression Stockings
Compression stockings apply steady pressure to your legs, helping veins push blood back up and preventing fluid from leaking into surrounding tissue. They come in different strengths measured in millimeters of mercury (mmHg), and the right level depends on how severe your swelling is:
- Under 20 mmHg (low compression): Good for mild, end-of-day puffiness or prevention during long flights and desk jobs.
- 20 to 30 mmHg (medium compression): Typically recommended for varicose veins, moderate swelling, or after a blood clot.
- 30 to 40 mmHg (moderate to high compression): Used for severe swelling or significant vein problems.
- 40 to 50 mmHg (firm compression): Reserved for people with a history of serious vein disease or recurrent blood clots, usually prescribed by a doctor.
Start with low compression if you’ve never worn them before. Put them on first thing in the morning before swelling builds up during the day. If they feel painfully tight, roll down, or bunch behind your knee, you likely have the wrong size or style rather than the wrong compression level.
Cut Back on Sodium
Salt makes your body hold onto water, and that extra fluid tends to settle in your legs. The American Heart Association recommends staying under 1,500 mg of sodium per day for the general population. If you have heart failure or kidney issues, your doctor may set a different target, but 2,000 mg per day is a common ceiling for people managing fluid retention.
Most excess sodium doesn’t come from the salt shaker. It hides in restaurant meals, canned soups, deli meats, frozen dinners, bread, and condiments like soy sauce and salad dressings. Reading nutrition labels for a week or two gives you a realistic picture of how much you’re actually consuming. Many people are surprised to find they’re eating 3,000 to 4,000 mg daily without realizing it. Cooking more meals at home and swapping packaged snacks for whole foods can make a noticeable difference in swelling within a few days.
Move More, but Alternate Positions
Sitting or standing in one position for hours is one of the most common triggers for leg swelling. Your calf muscles act as pumps that push blood back up toward your heart, and they only work when you move. If you sit at a desk all day, set a reminder to get up and walk around every 30 to 60 minutes, even if it’s just to the kitchen and back.
Standing desks aren’t automatically better. Standing in one spot for long stretches can actually worsen leg swelling, especially if you’re pregnant or have vein problems. The goal is alternating between sitting, standing, and walking throughout the day. Calf raises, ankle circles, and short walks are all effective at activating those muscle pumps and keeping fluid from pooling.
Check Your Medications
Several common medications cause leg swelling as a side effect, and this is worth investigating if your swelling started around the time you began a new prescription. Blood pressure medications called calcium channel blockers are among the most frequent culprits. Amlodipine, one of the most widely prescribed, causes noticeable ankle and foot swelling in nearly half the people who take it.
Other medications linked to leg swelling include beta blockers and other blood pressure drugs, hormone therapies (including estrogen, testosterone, and corticosteroids), gabapentin and pregabalin (used for nerve pain and seizures), NSAIDs like ibuprofen and naproxen, certain diabetes medications, and some antidepressants. If you suspect a medication is behind your swelling, don’t stop taking it on your own. Your doctor can often switch you to an alternative that doesn’t cause this side effect.
Why Legs Swell in the First Place
Leg swelling happens when fluid leaks out of small blood vessels and gets trapped in the surrounding tissue. The most common chronic cause is venous insufficiency, a condition where the valves in your leg veins weaken and can’t efficiently push blood back up to your heart. More than 25 million adults in the United States have chronic venous insufficiency, and varicose veins, which are closely related, affect up to 57% of men and 73% of women. Swelling and related complications become more common after age 65.
Other causes include heart failure (the heart can’t pump strongly enough, so fluid backs up), kidney disease (the kidneys can’t remove enough fluid), liver disease, lymphatic damage, and pregnancy. Prolonged sitting or standing, excess weight, and high sodium intake all make any of these worse.
How to Tell if Swelling Is Serious
Not all leg swelling is the same, and a few patterns should get your attention quickly. If only one leg is swollen, especially if it came on suddenly and is accompanied by pain, warmth, or redness, that raises concern for a deep vein thrombosis (a blood clot in a deep leg vein). This needs medical evaluation, typically within 24 hours, because a clot can break loose and travel to the lungs.
Doctors assess swelling severity by pressing a finger into the swollen area and watching what happens. If the pressure leaves a dent that fills back in immediately and is only about 2 millimeters deep, that’s mild (grade 1). If the dent is 8 millimeters deep and takes two to three minutes to rebound, that’s grade 4, the most severe. You can do this simple test yourself to track whether your swelling is getting better or worse over time.
One leg that’s also red, hot, and tender could indicate cellulitis, a skin infection that sometimes comes with a fever. Swelling in both legs that develops over days or weeks, particularly if you’re also short of breath or gaining weight rapidly, can point to heart or kidney problems that need attention. Swelling that pits deeply (grade 3 or 4), doesn’t respond to elevation, or keeps worsening despite home measures is worth bringing up with your doctor sooner rather than later.