Swollen Ankles: What to Do and When to Get Help

Swollen ankles usually respond well to simple strategies you can start at home: elevating your legs, wearing compression socks, moving more, and cutting back on salt. The right approach depends on whether your swelling is from sitting too long, an injury, a medication side effect, or something that needs medical attention. Here’s what actually works and when to take swelling more seriously.

Elevate Your Legs Above Your Heart

Gravity is the simplest tool you have. When you sit or stand for long stretches, fluid pools in your lower legs because your veins have to work against gravity to push blood back up. Lying down and propping your ankles on pillows so they sit above the level of your heart lets that fluid drain naturally. Aim for 15 to 20 minutes several times a day, especially after long periods on your feet.

If you can’t lie down, even putting your feet up on a stool or ottoman helps. The key is getting your ankles higher than your hips.

Use Compression Socks or Stockings

Compression stockings apply gentle, graduated pressure that helps push fluid up and out of your lower legs. They come in different pressure levels measured in mmHg, and the right one depends on how much swelling you’re dealing with:

  • 8 to 15 mmHg: Light support for tired, achy legs and minor puffiness after a long day of sitting or standing.
  • 15 to 20 mmHg: A step up for mild to moderate swelling, travel days, or pregnancy-related leg discomfort.
  • 20 to 30 mmHg: Medical-grade compression often used for varicose veins and moderate edema. Usually prescribed by a clinician.
  • 30 to 40 mmHg: Reserved for advanced venous disease or lymphedema, and should only be used with professional guidance.

For everyday swelling, most people do well starting with 15 to 20 mmHg knee-high stockings. Put them on first thing in the morning before fluid has a chance to accumulate. They’re much harder to get on once your ankles are already puffy.

Move Your Ankles and Walk More

Your calf muscles act as a pump for your veins. Every time they contract, they squeeze blood upward toward your heart. Sitting still for hours turns that pump off, and fluid starts to collect around your ankles.

Ankle pumps are the easiest exercise to get fluid moving again. Sit or lie with your legs extended, then point your toes away from you as far as you can, then pull them back toward your knees as far as you can. Alternate back and forth for two to three minutes, and repeat two to three times every hour. This is especially useful during long flights, car rides, or desk-bound workdays. Walking, even a short loop around your home or office every 30 minutes, activates that calf pump more effectively than any other remedy.

Cut Back on Sodium

Salt makes your body hold onto water, and that extra fluid tends to settle in your ankles and feet. For people dealing with persistent swelling, Georgetown University’s nephrology guidelines recommend keeping daily sodium intake between 1,375 and 1,800 mg. For context, the average American eats more than 3,400 mg per day, so this is a significant cut.

Most of that excess sodium doesn’t come from the salt shaker. It hides in processed foods, restaurant meals, canned soups, deli meats, cheese, and condiments. Reading nutrition labels and cooking more meals at home are the two most practical ways to get your intake down. You won’t see results overnight, but within a few days of eating less salt, your body releases the extra water it was holding.

What About Epsom Salt Soaks?

Soaking puffy ankles in warm Epsom salt water is one of the most popular home remedies out there, but the evidence doesn’t support the claims. According to specialists at the Hospital for Special Surgery, there’s no research showing that magnesium from Epsom salts absorbs through the skin in meaningful amounts or has any real anti-inflammatory effect. A warm foot soak might feel soothing, and the warmth can temporarily improve circulation, but it isn’t reducing the underlying swelling. Your time is better spent elevating, compressing, and moving.

Swelling From an Injury

If your ankle swelled up after a twist, fall, or impact, the old RICE approach (rest, ice, compression, elevation) still works well in the first day or two. Ice is most helpful in brief 10-minute intervals for pain relief, not extended 20- to 30-minute sessions. Wrap the area with a compression bandage and keep it elevated as much as possible.

After those initial 48 hours, newer thinking favors getting some movement back in rather than staying completely off the ankle. Some clinicians now recommend what’s called MICE (motion, ice, compression, elevation) or RACE (recover actively, compress, elevate). The common theme is that gentle, early movement helps your body clear the swelling and rebuild strength faster than total immobilization. Inflammation is part of healing, so the goal isn’t to eliminate it entirely, just to manage pain and prevent excess fluid buildup.

Medications That Cause Ankle Swelling

Certain blood pressure medications called calcium channel blockers are well-known for causing puffy ankles. This is a class-wide effect, meaning all drugs in this category can do it, though some are worse than others. The swelling is dose-related: at lower doses, it happens in roughly 1 to 15% of people, but at higher long-term doses it can affect more than 80% of patients.

Other common culprits include certain diabetes medications, hormone therapies (including birth control and hormone replacement), steroids, and some antidepressants. If your ankle swelling started or worsened after beginning a new medication, that connection is worth raising with whoever prescribed it. Adjusting the dose or switching to a different drug often resolves the problem.

Professional Treatment for Persistent Swelling

When home strategies aren’t enough, a type of specialized massage called manual lymphatic drainage can help. A trained therapist uses slow, rhythmic hand movements that stretch the skin in specific directions, promoting the filling and emptying of lymph vessels and boosting your body’s ability to transport fluid out of the swollen area. Research supports its effectiveness for reducing edema, relieving pain, and improving range of motion, and some studies suggest it outperforms standard care alone for fluid reduction.

For chronic swelling tied to venous insufficiency (where the valves in your leg veins don’t close properly), treatment may involve prescription-strength compression, specialized wrapping techniques, or procedures to address the faulty veins directly.

One Ankle vs. Both Ankles

Whether the swelling affects one ankle or both tells you a lot about what might be going on. Swelling in both ankles typically points to a systemic cause: fluid retention from too much salt, a medication side effect, vein problems, or less commonly, issues with the heart, kidneys, liver, or thyroid. The most common reason for both ankles swelling is incompetent valves in the leg veins, which allow blood to pool instead of flowing back up efficiently.

Swelling in just one ankle is a different story. It’s more likely related to a local problem: an injury, infection, or, more seriously, a blood clot in a deep vein. A blood clot, sometimes called a DVT, often comes with warmth, redness, tenderness, or a feeling of tightness in the calf. This is a medical emergency. If one leg swells suddenly and you have pain or warmth along with it, get evaluated the same day.

Swollen Ankles During Pregnancy

Some ankle swelling during pregnancy is completely normal, especially in the third trimester, as your body retains more fluid and your growing uterus puts pressure on the veins returning blood from your legs. Elevating your feet, wearing supportive compression stockings in the 15 to 20 mmHg range, and staying active all help manage it.

What’s not normal is sudden, dramatic swelling, particularly if it shows up in your face and hands along with your ankles. Sudden puffiness combined with rapid weight gain can be an early sign of preeclampsia, a serious pregnancy complication involving high blood pressure that typically develops after 20 weeks. Headaches, vision changes, or upper abdominal pain alongside sudden swelling make this more urgent. This combination warrants immediate medical evaluation.