Swollen feet and ankles usually result from excess fluid pooling in the tissues of your lower legs, pulled there by gravity and held in place when your body’s fluid balance tips off-center. The good news: most cases respond well to simple strategies you can start at home today. Elevating your legs, moving more, adjusting what you eat, and a few other practical steps can make a noticeable difference within hours to days.
Why Fluid Pools in Your Feet
Swelling in the lower extremities happens when fluid leaks out of tiny blood vessels into the surrounding tissue faster than it can be reabsorbed. Several forces control this balance: the pressure inside your blood vessels, the ability of vessel walls to hold fluid in, and how well your lymphatic system drains excess fluid away. When any of these systems falls out of balance, fluid accumulates, and gravity ensures it settles in the lowest point of your body.
Standing or sitting for long stretches is one of the most common triggers. Prolonged standing increases venous pressure in the legs, making it harder for blood to travel back up to the heart. Pregnancy, excess body weight, high salt intake, and certain medications can all tip the balance as well. Calcium channel blockers, a widely prescribed class of blood pressure medication, cause ankle swelling in up to 15% of people who take them.
Elevate Your Legs Above Your Heart
Elevation is the fastest way to start moving fluid out of swollen feet. The key detail most people miss: your feet need to be above the level of your heart, not just propped on an ottoman. Lie on a couch or bed and stack pillows under your calves and ankles so your legs angle upward. Aim for about 15 minutes per session, three to four times a day. Even one session can reduce visible puffiness, and consistent daily elevation prevents fluid from building back up overnight.
Use Your Calf Muscles as a Pump
Your calf muscles act as a natural pump that pushes blood and fluid back up toward your heart every time they contract. When you sit or stand without moving, that pump goes idle and fluid stagnates. A few targeted exercises can reactivate it, even if you’re stuck at a desk or recovering from an injury.
- Ankle pumps: Pull your toes up toward your shin, then point them toward the floor. Repeat 5 to 10 times. This single motion engages the full length of your calf.
- Ankle circles: Rotate your foot in slow circles, 5 to 10 in each direction. Especially helpful if your ankle feels stiff from swelling.
- Seated heel raises: With your feet flat on the floor, lift your heels while keeping your toes down. Repeat 5 to 10 times.
- Standing heel raises: Hold onto a counter or chair back for balance. Rise up onto the balls of your feet, then slowly lower. Repeat 5 to 10 times.
These take under two minutes and can be done several times throughout the day. Walking is equally effective. Even a short five-to-ten-minute walk activates the calf pump and encourages fluid to move out of the ankles.
Cut Back on Sodium
Sodium causes your body to hold onto water. When you eat more salt than your kidneys can quickly process, that extra fluid has to go somewhere, and it often ends up in your feet and ankles. Most major health organizations recommend keeping sodium under 2,000 milligrams per day if you’re dealing with fluid retention. For context, a single fast-food meal can easily exceed that in one sitting.
The biggest sodium sources aren’t the salt shaker on your table. They’re processed and packaged foods: deli meats, canned soups, frozen meals, bread, cheese, and condiments. Reading nutrition labels and choosing lower-sodium versions of staples you eat daily tends to have a bigger impact than simply avoiding the salt shaker. Cooking at home with fresh ingredients gives you the most control.
Eat More Potassium-Rich Foods
Potassium works in direct opposition to sodium. The more potassium you eat, the more sodium your kidneys flush out through urine, which helps your body release excess water. Bananas get all the credit, but plenty of foods are richer sources: sweet potatoes, white beans, spinach, avocados, yogurt, and salmon. Aiming for a variety of these throughout the week supports the fluid balance that keeps swelling in check.
Stay Hydrated, Don’t Restrict Water
It sounds counterintuitive, but drinking enough water actually helps reduce swelling rather than making it worse. Your body tightly regulates the balance between water and sodium in your blood. When you’re dehydrated, a hormone signals your kidneys to hold onto water, which concentrates sodium and promotes fluid retention in tissues. Drinking adequate water allows your kidneys to flush out excess sodium and normalize that balance.
There’s no magic number that works for everyone, but most adults do well with roughly eight cups a day, adjusted upward in hot weather or with physical activity. If your urine is pale yellow, you’re generally well-hydrated.
Try an Epsom Salt Soak
Soaking swollen feet in warm water with Epsom salt is a popular home remedy, and there’s some clinical support for it. A study on pregnant women with foot swelling found that soaking in lukewarm water with about 30 grams (roughly two tablespoons) of Epsom salt per liter of water for 20 minutes a day reduced swelling by nearly 74% over three days. That outperformed foot exercises alone in the same study.
The warm water likely helps by improving circulation, while the magnesium sulfate in Epsom salt may draw fluid out of swollen tissue. Fill a basin deep enough to cover your ankles, keep the water comfortably warm (not hot), and soak for 15 to 20 minutes.
Compression Socks and Stockings
Compression garments apply steady, graduated pressure to your lower legs, with the tightest squeeze at the ankle and less pressure as the sock moves upward. This mimics the natural pumping action of your calf muscles and prevents fluid from settling into the tissue. They’re especially useful if your swelling is triggered by long periods of sitting, such as a desk job or air travel. Over-the-counter compression socks in the 15 to 20 mmHg range are widely available at pharmacies and work well for mild to moderate swelling. Put them on first thing in the morning before swelling builds up for the best results.
Reduce Sitting and Standing Time
If your daily routine involves hours of sitting or standing in one position, that alone may be the primary driver of your swelling. The fix doesn’t require a gym membership. Set a reminder to change positions every 30 to 60 minutes. If you sit at a desk, stand and walk for a minute or two. If your job requires standing, sit briefly and elevate your feet when possible. Even shifting your weight from foot to foot or doing a few ankle pumps while standing in line helps keep fluid moving.
When Swelling Signals Something Serious
Most foot and ankle swelling is harmless, but certain patterns deserve prompt attention. Swelling in only one leg, especially when paired with pain or cramping in the calf, skin that turns red or purple, or warmth in the affected leg, can signal a blood clot known as deep vein thrombosis. This is a medical emergency if it leads to sudden shortness of breath, chest pain that worsens with deep breaths, a rapid pulse, dizziness, or coughing up blood, all of which suggest the clot has traveled to the lungs.
Swelling that leaves a visible dent when you press on it (called pitting edema), swelling that gets progressively worse over weeks, or swelling accompanied by weight gain and shortness of breath can point to heart, kidney, or liver problems that need evaluation. If your swelling started after beginning a new medication, that’s worth bringing up with whoever prescribed it, since several common drug classes are known to cause fluid retention in the ankles.