Swollen feet usually respond well to simple measures you can do at home: elevating your legs, cutting back on salt, wearing compression socks, and moving more throughout the day. Most swelling in the feet and ankles comes from fluid pooling in the tissues, a condition called edema. It’s extremely common, especially if you sit or stand for long stretches, are pregnant, or take certain medications. The fixes depend on what’s driving the swelling in the first place.
Why Your Feet Are Swelling
Fluid naturally settles downward with gravity. When you sit at a desk all day, stand for a long shift, or travel on a plane, your body has a harder time pushing that fluid back up toward your heart. That alone accounts for a huge share of swollen feet. But several medical conditions make the problem worse or cause it outright: heart failure (where the heart can’t pump blood efficiently, so it backs up into the legs), kidney disease, liver disease, thyroid conditions, and venous insufficiency, where damaged valves in leg veins let blood pool instead of flowing upward.
Blood clots are a more urgent cause. A deep vein thrombosis, or DVT, typically causes sudden swelling in just one leg, often with calf pain. That’s a situation that needs immediate medical attention, not home remedies.
Medications are another common culprit people overlook. Blood pressure drugs called calcium channel blockers (like amlodipine) are well known for causing foot and ankle swelling because they widen certain blood vessels, increasing pressure inside the capillaries. Some diabetes medications do the same by causing the body to retain sodium and fluid. If your swelling started or worsened after beginning a new medication, that connection is worth raising with your prescriber.
Elevate Your Legs the Right Way
Elevation is the single most straightforward thing you can do. The key detail most people miss: your feet need to be above the level of your heart, not just propped on an ottoman. Lying on a couch or bed with pillows stacked under your calves and feet works well. Aim for about 15 minutes at a time, three to four times a day. This lets gravity work in your favor, draining fluid from your lower legs back into circulation.
If you work at a desk, even a footrest that raises your feet a few inches helps slow the accumulation, though it won’t reverse swelling the way true elevation does.
Use Ankle Pumps to Push Fluid Out
Your calf muscles act as a pump for your veins. Every time they contract, they squeeze blood and fluid upward. When you’re sedentary, that pump sits idle and fluid accumulates. Ankle pumps are a simple exercise that activates it: sit or lie with your legs extended, then point your toes toward your knees as far as you can, then point them away from you. Alternate back and forth for two to three minutes, and repeat two to three times per hour when you’re sitting for long periods.
Walking works the same pump more vigorously. Even a five-minute walk every hour makes a noticeable difference if your swelling is related to prolonged sitting or standing.
Cut Your Sodium Intake
Salt causes your body to hold on to water. For people with heart failure, clinical guidelines recommend staying under 2,000 mg of sodium per day, which is noticeably less than the average American intake of around 3,400 mg. Even if you don’t have heart failure, reducing sodium helps with garden-variety fluid retention.
The biggest sources aren’t the salt shaker on your table. They’re processed and packaged foods: canned soups, deli meats, chips, cheese, frozen meals, and fast food. Reading nutrition labels and cooking more meals from whole ingredients are the most effective ways to bring sodium down. You don’t need to eliminate salt entirely, just become aware of how much is hiding in the foods you eat regularly.
How Compression Socks Help
Compression stockings apply graduated pressure to your lower legs, tightest at the ankle and looser as they go up. This physically prevents fluid from settling into your tissues and supports the return of blood toward your heart. They come in several pressure levels, measured in millimeters of mercury (mmHg):
- 15 to 20 mmHg (mild): Good for very early or mild swelling, long flights, or jobs that keep you on your feet. Available without a prescription at most pharmacies.
- 20 to 30 mmHg (moderate): The most commonly prescribed level for mild to moderate edema. This is where most people with recurring swollen feet land.
- 30 to 40 mmHg (firm): Used for more significant swelling, chronic venous problems, or cases where moderate compression isn’t enough.
- 40 to 50 mmHg and above: Reserved for severe cases and only used after clinical assessment.
For most people dealing with everyday swollen feet, starting with 15 to 20 mmHg is reasonable. Put them on first thing in the morning before swelling starts for the day. If you find they aren’t making a difference, a step up to 20 to 30 mmHg with a provider’s guidance is the typical next move.
Stay Hydrated (Yes, Really)
It sounds counterintuitive, but drinking enough water can actually reduce fluid retention rather than make it worse. When you’re dehydrated, your body responds by holding on to whatever fluid it has, which worsens swelling. Staying consistently hydrated signals your kidneys to release excess sodium and water normally. There’s no magic number that works for everyone, but keeping your urine a pale yellow color is a reliable day-to-day gauge.
Alcohol works in the opposite direction. It disrupts your body’s fluid balance and is a recognized contributor to edema. Cutting back, especially if you drink regularly, can make a real difference in how puffy your feet and ankles feel.
Swollen Feet During Pregnancy
Mild foot and ankle swelling is a normal part of pregnancy, particularly in the third trimester, as your body carries extra fluid volume and your growing uterus puts pressure on the veins that return blood from your legs. Elevation, compression socks, ankle pumps, and reducing sodium all help.
What’s not normal: sudden swelling that gets worse quickly, especially in the face or hands, swelling that’s painful and only in one leg, or swelling accompanied by headaches or vision changes. Rapidly worsening swelling can signal pre-eclampsia, a serious blood pressure condition of pregnancy that needs prompt medical evaluation. A sudden, painful swollen leg could mean a blood clot, which pregnancy also increases the risk for.
When Swelling Points to Something Bigger
Most swollen feet are a nuisance, not a danger. But certain patterns signal that the swelling is a symptom of something that needs treatment beyond home care. Swelling that affects only one leg, comes on suddenly, or is accompanied by redness and warmth may indicate a blood clot. Swelling that never fully goes away overnight, or that gradually worsens over weeks, can point to heart, kidney, or liver problems. Pitting edema, where pressing your finger into your skin leaves an indentation that holds for several seconds, often suggests the body is retaining more fluid systemically.
If you’ve been elevating, cutting salt, wearing compression, and staying active but your feet are still swollen most days, that’s a sign to get blood work and a clinical assessment. The swelling itself isn’t the disease. It’s your body telling you that something, whether medication, circulation, or an organ, isn’t working the way it should.