Most ankle swelling responds well to a combination of elevation, movement, and simple habit changes. Whether yours is from standing all day, a minor injury, or fluid retention, the strategy is the same: help your body move excess fluid out of the lower legs and back into circulation. Here’s how to do that effectively.
Elevate Above Your Heart
Elevation is the fastest way to get visible relief. The key detail most people miss: your ankle needs to be above the level of your heart, not just propped on a footstool. Lying on the couch with your foot on two or three stacked pillows works well. Sitting in a recliner with your feet slightly raised does not, because your ankles are still below your chest.
Gravity is doing the work here, draining fluid from the tissues around your ankle back toward your core where your lymphatic system and kidneys can process it. The longer you maintain this position, the more fluid drains. Aim for at least 15 to 20 minutes per session, and repeat several times throughout the day if swelling is persistent.
Use Compression
Compression socks or stockings apply steady pressure that prevents fluid from pooling in your lower legs. For mild, everyday swelling, stockings rated at 15 to 20 mmHg provide gentle support and are available over the counter at most pharmacies. If your swelling is more stubborn or follows an injury or surgery, 20 to 30 mmHg stockings offer stronger pressure while still being comfortable enough for all-day wear.
Higher levels (30 to 40 mmHg and above) exist for more serious conditions like chronic venous disease or lymphedema, but these typically require guidance from a clinician to ensure they’re appropriate for your circulation. Start with a lower level and see how your ankles respond before moving up.
Get Your Calves Working
Your calf muscles act as a pump for the veins in your lower legs. Every time they contract, they squeeze blood and fluid upward toward your heart. When you sit or stand still for hours, that pump shuts off and fluid accumulates around your ankles.
The simplest fix is ankle pumps: point your toes down, then pull them up toward your shin, alternating back and forth for two to three minutes. Repeat this two to three times per hour, especially if you’re stuck at a desk or on a long flight. Walking is even more effective because it engages the full calf muscle with each step. Even a few minutes of walking can noticeably reduce swelling, and building up to regular 20 to 30 minute walks gives your circulation consistent support throughout the day.
Cut Back on Sodium
Sodium causes your body to hold onto water, and that extra fluid tends to settle in the lowest point available: your ankles and feet. The typical American diet contains well over 3,000 mg of sodium per day. For people actively dealing with edema, medical guidelines from Georgetown University suggest keeping daily sodium between 1,375 and 1,800 mg to meaningfully reduce fluid retention.
That’s a significant cut, and most of it comes from processed and restaurant food rather than the salt shaker on your table. Canned soups, deli meats, frozen meals, soy sauce, and bread are some of the biggest hidden sources. Reading nutrition labels and cooking more meals at home are the two most practical ways to get sodium under control. You don’t need to hit a perfect number every day. Even a moderate reduction makes a noticeable difference in how much fluid your body retains.
Drink More Water, Not Less
It sounds counterintuitive, but drinking more water helps your body release stored fluid rather than hold onto it. When you’re even mildly dehydrated, your body responds by retaining sodium and water as a protective measure. Drinking adequate water reverses that signal.
There’s also a direct flushing mechanism at work. When a large volume of water hits your system, sensors in your mouth and throat trigger what physiologists call a bolus response, essentially a protective reflex that causes your kidneys to excrete a larger proportion of that fluid. Your body perceives the sudden intake and moves to eliminate excess, taking retained sodium with it. Sipping water consistently throughout the day, rather than going hours without it, keeps this system working in your favor.
Consider Magnesium
Magnesium deficiency is linked to increased fluid retention, and supplementing with 200 to 400 mg per day may help reduce swelling. This is especially relevant for people who notice their ankles swell around their menstrual cycle, since magnesium levels drop during that time. Foods rich in magnesium include dark leafy greens, nuts, seeds, and dark chocolate, but a supplement can fill the gap more reliably if your levels are low. People with kidney or heart conditions should check with their doctor before adding magnesium, since the kidneys regulate how much stays in your system.
Apply Ice for Injury-Related Swelling
If your ankle swelling followed a sprain, strain, or impact, ice helps in the first 48 to 72 hours by constricting blood vessels and limiting the inflammatory fluid that rushes to the area. Apply a cold pack wrapped in a thin towel for 15 to 20 minutes at a time, with at least an hour between sessions to let the skin recover. Combine this with elevation and gentle compression (an elastic bandage works fine) for the classic RICE approach: rest, ice, compression, elevation.
After the first few days, the goal shifts. Gentle movement becomes more important than rest, because prolonged immobility slows the drainage of inflammatory fluid and can lead to stiffness. Start with ankle pumps and short walks, progressing as pain allows.
When Ankle Swelling Needs Attention
Most ankle swelling is harmless and temporary. But certain patterns point to something more serious. Sudden swelling in only one leg, especially with pain, warmth, or redness, can signal a blood clot in a deep vein. This is a medical emergency that needs same-day evaluation.
Chronic swelling in both legs that doesn’t improve with elevation and lifestyle changes can be related to vein disease, or to heart, kidney, or liver problems. In these cases, the swelling is a symptom of the underlying condition, and no amount of compression socks or sodium reduction will fully resolve it without addressing the root cause. Swelling that leaves a lasting dent when you press on it (called pitting edema), swelling that worsens over weeks, or swelling accompanied by shortness of breath all warrant a conversation with your doctor sooner rather than later.