Swollen ankles and feet usually result from fluid pooling in your lower extremities, and most cases respond well to simple strategies you can start at home. Elevation, movement, compression, and dietary changes form the core toolkit. The key is getting fluid moving back toward your heart, since gravity works against you all day long.
Elevate Your Legs Above Heart Level
The single most effective thing you can do right now is lie down and prop your feet up on pillows so they sit above the level of your heart. This lets gravity pull trapped fluid back into circulation instead of letting it settle in your ankles. Aim for 20 to 30 minutes at a time, and repeat several times throughout the day. Even propping your feet on an ottoman while seated helps, though lying flat with legs elevated works faster.
Use Ankle Pumps to Push Fluid Out
Your calf muscles act as a pump that squeezes fluid and blood upward through your veins. When you sit or stand for hours without moving, that pump shuts off and fluid accumulates. Ankle pumps are a simple way to restart it.
Sit or lie down with your legs extended. Point your toes toward your knees as far as you can, then point them away from you as far as you can. Keep alternating for two to three minutes, and repeat the exercise two to three times every hour. You can do this at a desk, on the couch, or in bed. Walking is even better if you’re able, since each step engages the full calf muscle. Any movement that contracts the muscles in your lower legs will help push fluid upward.
Try Compression Socks
Compression stockings apply graduated pressure to your legs, tightest at the ankle and loosening as they go up. This prevents fluid from settling and supports your veins in pushing blood back toward the heart. They come in different pressure levels measured in millimeters of mercury (mmHg):
- 8 to 15 mmHg (mild): Good for tired, aching legs and minor swelling. Available over the counter without a prescription.
- 15 to 20 mmHg (moderate): Helpful for minor varicose veins, travel-related swelling, and everyday edema. Also widely available in stores.
- 20 to 30 mmHg (firm): Medical-grade compression for moderate swelling, varicose veins, or post-surgical recovery. Often recommended by a doctor.
For general swelling relief, start with a moderate pair (15 to 20 mmHg). Put them on first thing in the morning before swelling sets in for the day, and remove them before bed. They should feel snug but not painful.
Cut Back on Sodium
Sodium causes your body to hold onto water, and excess salt intake is one of the most common drivers of swelling in the feet and ankles. The American Heart Association recommends less than 1,500 mg of sodium per day for the general population, though many people consume double or triple that amount without realizing it.
Most of the sodium in your diet doesn’t come from the salt shaker. It hides in processed foods, restaurant meals, canned soups, deli meats, bread, and condiments. Reading nutrition labels and cooking more meals at home are the most practical ways to bring your intake down. You don’t need to hit a perfect number, but even modest reductions can make a noticeable difference in how much fluid your body retains.
Stay Hydrated (Yes, Really)
It sounds counterintuitive, but drinking enough water actually helps reduce swelling. When you’re dehydrated, your body holds onto the fluid it has more aggressively, worsening retention. Steady water intake throughout the day signals your kidneys to release excess fluid rather than hoard it. Avoid sugary drinks and limit alcohol, which can contribute to dehydration and inflammation.
Check Your Medications
Certain blood pressure medications are a well-known cause of ankle swelling. Calcium channel blockers, a widely prescribed class that includes amlodipine, nifedipine, and felodipine, cause ankle swelling in 1 to 15% of patients at standard doses. At higher doses taken long-term, that number can exceed 80%. The swelling happens because these drugs relax blood vessel walls, allowing more fluid to leak into surrounding tissue.
Other medications linked to lower leg swelling include some diabetes drugs, anti-inflammatory painkillers, steroids, and certain hormone therapies. If your swelling started or worsened after beginning a new medication, bring it up with your prescriber. Adjusting the dose or switching to a different drug often resolves the problem. Don’t stop any medication on your own.
Swelling During Pregnancy
Mild to moderate ankle swelling is extremely common during pregnancy, especially in the third trimester. Your blood volume increases significantly, and your growing uterus puts pressure on the large vein that returns blood from your lower body to your heart.
A few targeted strategies help. Sleep on your left side, which takes pressure off that major vein and improves circulation. Prop your legs up slightly with pillows while sleeping. When seated, rotate your feet in circles at the ankles and gently flex your calves. Standing or walking in a pool can also help because the water pressure gently compresses your legs. Avoid clothing with tight bands around your ankles or calves, which can restrict blood flow and trap fluid below.
When Swelling Is a Warning Sign
Most ankle swelling is harmless, but certain patterns warrant prompt medical attention. The biggest red flag is sudden swelling in only one leg. This can signal a deep vein thrombosis (a blood clot in a deep leg vein), which requires urgent evaluation. Warning signs include one calf that’s noticeably larger than the other (a difference of more than 3 centimeters is significant), pain or tenderness along the inner leg, warmth, and redness.
Sudden swelling in both legs accompanied by shortness of breath could indicate a heart or kidney issue. Swelling with red, hot, tender skin may point to an infection. During pregnancy, rapid swelling paired with headaches, vision changes, or upper abdominal pain can be a sign of preeclampsia, which needs immediate care.
How Doctors Assess Swelling Severity
If you do see a doctor, they’ll likely press a finger into your swollen skin and watch what happens. This is called a pitting edema test, and it’s graded on a simple scale. Grade 1 is a shallow 2 mm dent that bounces back immediately. Grade 2 is a 3 to 4 mm dent that rebounds within 15 seconds. Grade 3 leaves a 5 to 6 mm impression that takes up to a minute to fill back in. Grade 4 creates an 8 mm pit that can take two to three minutes to recover. Higher grades generally point to more significant fluid retention and may prompt further testing to identify an underlying cause.
For most people dealing with everyday swelling from prolonged sitting, heat, salty meals, or long days on their feet, the combination of elevation, movement, compression, and lower sodium intake resolves the issue within a day or two. If swelling persists despite these measures, or if it keeps returning, that’s worth investigating further to rule out venous insufficiency, kidney problems, or other chronic conditions driving the fluid buildup.