Swollen legs and feet usually improve with a few straightforward measures: elevating your legs above heart level, moving regularly, cutting back on salt, and wearing compression stockings. These steps work because most leg swelling comes from fluid pooling in your lower body due to gravity, prolonged sitting or standing, or excess sodium in your diet. If swelling is new, sudden, or only in one leg, it can signal something more serious that needs medical attention.
Elevate Your Legs Above Your Heart
The fastest way to bring down swelling is to lie back and prop your legs up so they’re above the level of your heart. This lets gravity work in your favor, pulling trapped fluid back toward your core where your body can process and eliminate it. Use a stack of pillows, a wedge cushion, or the arm of a couch. Aim for about 15 minutes per session, three to four times a day. Even a single session can noticeably reduce puffiness, but consistency over several days makes the biggest difference.
If you work at a desk, try elevating your legs during lunch or breaks. At night, placing a pillow under your calves while you sleep keeps fluid from settling in your feet overnight.
Keep Your Legs Moving
Your calf muscles act as a pump for the veins in your legs. Every time they contract, they squeeze blood and fluid upward toward your heart. Sitting or standing in one position for hours shuts that pump off, and fluid accumulates.
One of the simplest exercises is the ankle pump: sit or lie with your legs out straight, then point your toes toward your knees as far as you can, then away from you as far as you can. Alternate back and forth for two to three minutes, and repeat two to three times per hour when you’re sitting for long stretches. Walking, even for just five to ten minutes every hour, also activates your calf muscles and helps push fluid out of your lower legs. If you’re on a long flight or car ride, ankle pumps are especially useful since you can do them without standing up.
Try Compression Stockings
Compression stockings apply graduated pressure to your legs, with the tightest squeeze at the ankle and lighter pressure as they go up. This steady pressure keeps fluid from pooling and supports your veins in pushing blood back toward your heart.
Compression levels are measured in millimeters of mercury (mmHg). For mild, everyday swelling, Class I stockings (18 to 21 mmHg) are usually enough and can be bought without a prescription. If you have moderate or persistent edema, Class II stockings (23 to 32 mmHg) provide stronger support. Higher classes (34 mmHg and above) are reserved for more severe conditions and typically require a fitting from a healthcare provider. Put them on first thing in the morning before swelling builds up during the day, and remove them at bedtime.
Cut Back on Sodium
Salt makes your body hold onto water. The more sodium you consume, the more fluid your kidneys retain, and that extra fluid tends to settle in your legs and feet. Most health guidelines recommend staying under 2,000 milligrams of sodium per day if you’re actively dealing with fluid retention. For context, a single teaspoon of table salt contains about 2,300 milligrams, and many restaurant meals exceed a full day’s limit in one sitting.
The biggest sources of hidden sodium aren’t the salt shaker. They’re processed and packaged foods: canned soups, deli meats, frozen meals, bread, sauces, and condiments. Reading nutrition labels and cooking more meals from whole ingredients are the most effective ways to lower your intake. Potassium-rich foods like bananas, sweet potatoes, and leafy greens can help counterbalance sodium’s fluid-retaining effects, though this isn’t a substitute for reducing sodium itself.
Check Your Medications
Several common medications cause leg and foot swelling as a side effect. Calcium channel blockers, a widely prescribed class of blood pressure drugs, are one of the most frequent culprits. Nearly half of people taking them experience some ankle or foot swelling. Other medications that can trigger fluid buildup include beta blockers, hormone therapies (estrogen, progesterone, testosterone, corticosteroids), anti-seizure drugs like gabapentin and pregabalin, certain antidepressants, common pain relievers like ibuprofen and naproxen, and some diabetes and cancer medications.
If your swelling started or worsened after beginning a new medication, that connection is worth raising with your prescriber. In many cases, switching to a different drug in the same class or adjusting the dose resolves the problem. Don’t stop taking a prescribed medication on your own, but do bring it up at your next appointment or call your provider’s office.
When Swelling Signals Something Serious
Most leg swelling is harmless, but certain patterns warrant urgent attention. The most important red flag is swelling in only one leg, especially if it’s accompanied by pain or cramping in the calf, warmth in the affected area, or skin that looks red or purple. This combination can indicate a deep vein thrombosis (DVT), a blood clot in one of your deep leg veins. DVT can sometimes occur without noticeable symptoms, which makes new, unexplained one-sided swelling worth getting checked promptly.
A DVT becomes dangerous if part of the clot breaks off and travels to the lungs, causing a pulmonary embolism. Seek emergency care if you experience sudden shortness of breath, chest pain that worsens with deep breaths or coughing, dizziness or fainting, a rapid pulse, or coughing up blood.
Swelling in both legs that develops gradually is more commonly tied to conditions like heart failure, kidney disease, liver problems, or chronic venous insufficiency. If your swelling doesn’t improve with elevation and salt reduction after a week or two, or if it’s getting progressively worse, your doctor can run tests to identify the underlying cause.
How Doctors Assess Swelling
One of the first things a provider does is press a finger into the swollen area for a few seconds and then release. If the pressure leaves a visible dent that takes time to bounce back, it’s called pitting edema. The depth of the dent and how long it takes to refill tell your provider how severe the fluid retention is. A shallow 2-millimeter pit that rebounds immediately is Grade 1, the mildest form. An 8-millimeter pit that takes two to three minutes to fill back in is Grade 4, indicating significant fluid accumulation that likely needs treatment beyond home remedies.
Depending on what your provider suspects, they may order blood work to check your kidney and liver function, an ultrasound to look for blood clots, or an echocardiogram to evaluate your heart. These tests help distinguish between swelling that responds to lifestyle changes and swelling that requires medical treatment.
Medical Treatment for Persistent Swelling
When home measures aren’t enough, doctors often prescribe diuretics, commonly called water pills. These medications work by signaling your kidneys to release extra salt and water into your urine, reducing the total volume of fluid in your body. You’ll notice increased urination, which is the medication working as intended. The specific type your doctor chooses depends on how well your kidneys are functioning and what’s causing the swelling. Treatment is usually paired with sodium restriction and compression, since diuretics alone don’t address the root cause in most cases.
For swelling caused by venous insufficiency, where the valves in your leg veins don’t close properly and blood flows backward, treatment may include prescription-strength compression garments, procedures to close off damaged veins, or both. If heart, kidney, or liver disease is driving the edema, treating that underlying condition is what ultimately controls the swelling long term.