Ankle swelling responds best to a combination of movement, compression, elevation, and dietary changes. The right approach depends on whether your swelling is from an injury, prolonged sitting or standing, or an underlying health condition. Most mild to moderate ankle swelling improves significantly within a few days of consistent self-care.
Why Your Ankles Are Swelling
Before jumping into fixes, it helps to understand what’s happening. Swelling (edema) occurs when fluid accumulates in the tissues around your ankle joint. The most common reason for swelling in both ankles is faulty valves in the leg veins, which allow blood to pool downward instead of flowing efficiently back to the heart. Sitting or standing for long stretches, pregnancy, excess salt intake, and certain medications (especially blood pressure drugs and hormones) all contribute.
When only one ankle swells, the cause is more likely a sprain, strain, or other localized injury. One-sided swelling can also signal a blood clot, which needs immediate attention (more on that below). Swelling in both ankles that persists may point to kidney, liver, or heart problems, thyroid disorders, or anemia.
Elevation and Compression
Elevating your legs above heart level helps fluid drain out of the ankle tissues by gravity. Lie on a couch or bed with your feet propped on two or three pillows so your ankles sit higher than your chest. Even 15 to 20 minutes a few times a day makes a noticeable difference. The evidence behind elevation isn’t robust, but the risk is essentially zero and most people feel relief quickly.
Compression works alongside elevation. Wrapping your ankle with an elastic bandage or wearing graduated compression stockings applies steady external pressure that limits fluid buildup. For mild swelling, stockings rated at 20 to 30 mmHg are typically sufficient. If you have moderate or severe edema, 30 to 40 mmHg stockings provide stronger support, though these are best fitted with guidance from a healthcare provider. Put compression stockings on first thing in the morning before swelling accumulates during the day.
Movement That Reduces Swelling
Staying still is one of the worst things for a swollen ankle. Your calf muscles act as a pump, squeezing veins and pushing blood back toward the heart every time they contract. Without that pumping action, fluid stagnates.
Ankle pumps are the simplest exercise you can do anywhere. While sitting or lying down, point your toes away from you, then pull them back toward your shin. Repeat this motion continuously for two to three minutes, and do it two to three times every hour. It’s especially useful during long flights, car rides, or desk-bound workdays. Walking, swimming, and cycling also boost circulation. Pain-free aerobic exercise started within a few days of a mild injury improves blood flow to the injured area and speeds recovery.
If Your Swelling Is From an Injury
The current best practice for soft tissue injuries like ankle sprains has moved beyond the old RICE (rest, ice, compression, elevation) approach. Sports medicine experts now recommend a framework called PEACE and LOVE, which covers both the immediate phase and longer-term recovery.
In the first one to three days, protect the ankle by limiting movement enough to prevent further damage, but don’t rest longer than necessary. Prolonged immobilization actually weakens healing tissue. Elevate, compress, and let pain be your guide for when to start moving again. One notable shift: the current recommendation is to avoid anti-inflammatory medications like ibuprofen during the early phase. Inflammation is part of your body’s repair process, and suppressing it (especially at higher doses) may slow long-term healing.
After those initial days, gradually load the ankle with movement. Normal activities should resume as soon as symptoms allow. Pain-free aerobic exercise a few days post-injury increases blood flow to the healing structures. The goal is controlled, progressive stress on the tissue, not complete rest.
Cut Back on Sodium
Salt causes your body to hold onto water, and that extra fluid often shows up as ankle swelling. Most people consume far more sodium than they need. If you’re dealing with persistent edema, aim for 1,375 to 1,800 mg of sodium per day, which is well below the average American intake of over 3,400 mg. That means reading labels carefully, cooking at home more often, and being wary of restaurant meals, canned soups, deli meats, and processed snacks, which are the biggest sources of hidden sodium.
Foods That Help Reduce Fluid Retention
Certain foods act as mild natural diuretics, helping your body release excess water through increased urination. Water-rich fruits and vegetables are a good starting point: watermelon, cucumbers, celery, grapes, asparagus, pineapple, and bell peppers. Garlic, onions, ginger, and lemons also have mild diuretic properties.
On the beverage side, black and green teas contain caffeine, which is a natural diuretic. Hibiscus tea is a caffeine-free alternative that also promotes fluid loss. Parsley and dandelion are traditional herbal diuretics, though neither has been studied rigorously enough to establish reliable dosing. These foods and drinks won’t replace medical treatment for significant edema, but they complement other strategies well as part of your daily diet.
Choosing the Right Footwear
Tight shoes make swelling worse and can cause skin breakdown. If your ankles swell regularly, look for shoes with extra depth and wide or extra-wide sizing so your foot has room to expand without feeling squeezed. Stretchable uppers made of flexible materials accommodate fluctuations in swelling throughout the day.
Adjustable closures are particularly important. Velcro straps, elastic laces, or bungee systems let you loosen the fit on high-swelling days and tighten it when things improve. Leave about a thumb’s width between your longest toe and the front of the shoe. Sandals designed for edema offer adjustable straps at multiple points, which can be more comfortable than closed shoes during warm weather. Avoid socks or stockings with tight elastic bands at the top, which can restrict circulation and worsen pooling at the ankle.
When Ankle Swelling Is an Emergency
Most ankle swelling is uncomfortable but not dangerous. However, sudden swelling in one leg combined with pain or cramping (often starting in the calf), skin that turns red or purple, and a feeling of warmth in the affected leg can indicate a deep vein thrombosis, a blood clot in a deep vein. This requires prompt medical evaluation.
A blood clot becomes life-threatening if it breaks loose and travels to the lungs, causing a pulmonary embolism. Seek emergency care if you experience sudden shortness of breath, chest pain that worsens when you breathe deeply or cough, dizziness or fainting, a rapid pulse, or coughing up blood. These symptoms can develop even after the leg swelling seems minor.
Persistent swelling in both ankles that doesn’t improve with elevation, compression, and reduced sodium intake also warrants investigation. It may reflect an underlying issue with your heart, kidneys, liver, or thyroid that needs its own treatment plan.