Swollen ankles and feet usually improve with a combination of elevation, movement, compression, and dietary changes. Most cases stem from fluid pooling in your lower legs due to gravity, prolonged sitting or standing, high sodium intake, or medication side effects. The strategies below work best together, and most people notice a visible difference within a few days of consistent effort.
Elevate Your Legs Above Your Heart
Elevation is the fastest way to move fluid out of your ankles. Lie down and prop your legs on pillows so they sit above the level of your heart. This lets gravity pull trapped fluid back toward your core, where your kidneys can process and eliminate it. Aim for about 15 minutes per session, three to four times a day. Even once or twice daily helps if that’s all you can manage.
The key detail most people miss is height. Resting your feet on an ottoman while sitting in a chair barely helps because your ankles are still below your heart. You need to be lying flat with your legs genuinely elevated, not just slightly raised.
Move Your Ankles and Calves Regularly
Your calf muscles act as a pump that pushes blood and fluid upward against gravity. When you sit or stand still for hours, that pump shuts off and fluid collects around your ankles. Even small movements reactivate it.
Ankle pumps are the simplest exercise: sit or lie with your legs extended, then alternate pointing your toes toward your knees and away from you, moving through the full range of motion. Continue for two to three minutes and repeat two to three times per hour, especially during long flights, car rides, or desk work. Ankle circles, calf raises, and short walks accomplish the same thing. The goal is consistent activation throughout the day, not one intense workout.
Use Compression Stockings
Compression stockings apply graduated pressure to your legs, tightest at the ankle and looser higher up, which prevents fluid from settling downward. They come in several pressure levels measured in millimeters of mercury (mmHg):
- Mild (8 to 15 mmHg): Light support for minor swelling and fatigue
- Moderate (15 to 20 mmHg): Good for travel-related swelling and mild varicose veins
- Firm (20 to 30 mmHg): Suited for moderate swelling and post-surgical recovery
- Extra firm (30 to 40 mmHg): Reserved for severe venous problems, typically prescribed
For general ankle swelling, most people start with moderate compression (15 to 20 mmHg), which is available over the counter. Put them on first thing in the morning before swelling begins. Measure your ankle, calf, and leg length to find the right size, ideally taking measurements in the morning when your legs are at their smallest. The stockings should feel snug but not painful. Never roll or fold the tops down, as this creates a band that restricts blood flow and makes swelling worse.
Reduce Your Sodium Intake
Sodium pulls water into your bloodstream and tissues. When you eat more salt than your body needs, your kidneys hold onto extra water to keep the sodium-to-water ratio balanced, and some of that fluid ends up pooling in your feet and ankles.
For people with fluid retention, guidelines from the American Heart Association recommend keeping sodium below 2,000 mg per day. That’s noticeably less than the average intake, which for most adults exceeds 3,400 mg daily. The biggest sources are restaurant meals, processed foods, canned soups, deli meats, and salty snacks. Reading nutrition labels and cooking at home give you the most control. Many people see a meaningful reduction in swelling within a week of cutting sodium.
Staying well hydrated actually helps rather than hurts. When you drink enough water, your body can dilute excess sodium more effectively and your kidneys excrete the surplus. When you’re dehydrated, your body holds onto fluid more aggressively. Drinking water throughout the day supports the process rather than adding to the problem.
Check Whether Your Medication Is the Cause
Several common medications cause ankle swelling as a side effect. Calcium channel blockers, a widely prescribed type of blood pressure medication, cause noticeable foot and ankle swelling in nearly half the people who take them. Other culprits include beta blockers, hormone therapies (including estrogen, progesterone, testosterone, and corticosteroids), anti-seizure medications like gabapentin and pregabalin, NSAIDs like ibuprofen and naproxen, and certain diabetes and antidepressant medications.
If your swelling started or worsened after beginning a new medication, that connection is worth exploring with whoever prescribed it. In many cases there are alternative medications that don’t cause fluid retention. Don’t stop a prescribed medication on your own, but do flag the timing.
How to Tell if Your Swelling Is Mild or Serious
You can get a rough sense of severity by pressing a finger firmly into the swollen area for a few seconds and watching what happens when you release. This is called pitting edema, and it’s graded on a four-point scale. A shallow 2 mm dent that bounces back immediately is grade 1, the mildest form. A 3 to 4 mm dent that takes up to 15 seconds to refill is grade 2. A deeper 5 to 6 mm pit that takes up to a minute is grade 3. And an 8 mm pit that lingers for two to three minutes is grade 4, which signals significant fluid retention that needs medical evaluation.
Grades 1 and 2 often respond well to the home strategies above. Grades 3 and 4 typically point to an underlying cause, such as heart, kidney, or liver problems, that needs to be identified and treated directly.
Warning Signs That Need Urgent Attention
Most ankle swelling is harmless, but certain patterns suggest something more serious. Swelling in only one leg, especially when paired with pain or cramping in the calf, skin that looks red or purple, or warmth in the affected leg, can be signs of a deep vein thrombosis (a blood clot in a deep vein). Blood clots sometimes produce no symptoms at all, which is why sudden one-sided swelling deserves prompt evaluation even if it doesn’t hurt much.
If you develop sudden shortness of breath, chest pain that worsens when you breathe deeply or cough, dizziness, a rapid pulse, or you cough up blood, those are signs a clot may have traveled to the lungs. That’s a medical emergency.
Putting It All Together
The most effective approach combines several strategies at once. Elevate your legs for 15 minutes a few times a day. Do ankle pumps every hour when you’re sedentary. Wear compression stockings during the day. Cut back on sodium and stay hydrated. These habits compound over time. Most people with mild to moderate swelling from everyday causes like prolonged sitting, heat, or high salt intake see noticeable improvement within a few days. If your swelling doesn’t respond, keeps getting worse, or shows up with any of the red-flag symptoms above, that’s the signal to get it evaluated for an underlying cause.