Many people notice it gradually. One day, their shoes feel a little tighter by evening. Socks leave deeper marks around the ankles. Legs may feel heavy after sitting for a while or standing too long. For many older adults, swelling in the feet and lower legs becomes an unwelcome but familiar part of daily life.
This condition—known medically as edema—is extremely common as we age. In many cases, it is simply the result of changes in circulation that occur over time. But sometimes swelling can be a signal from the body that something else is going on, such as problems with the heart, kidneys, blood vessels, or even the medications we take.
The challenge is knowing the difference between harmless swelling that can be managed at home and symptoms that require medical attention. Fortunately, understanding a few key patterns—such as whether swelling affects one leg or both, when it appears during the day, and what makes it better or worse—can provide important clues.
In this article, we’ll explore why leg swelling happens, what conditions can cause it, which medications and supplements may play a role, and the practical steps that can help reduce it. You’ll also learn simple exercises, lifestyle strategies, and warning signs that should never be ignored. With the right knowledge and a few daily habits, most people can greatly improve comfort and keep their legs healthier and more active.
(Note: About Us, a reference bibliography, related books, videos and apps can be found at the end of this article.)
Article Highlights
- Edema is the medical term for swelling caused by excess fluid collecting in body tissues, most commonly in the feet, ankles, and lower legs.
- Swelling that worsens later in the day—especially after sitting or standing—often improves overnight when you lie down.
- A helpful clue is whether swelling occurs in one leg or both legs.
- Both legs often suggest circulation, heart, kidney, or medication-related causes.
- One leg may indicate a localized problem, such as a blood clot or injury.
- One of the most common causes in older adults is chronic venous insufficiency, where weakened vein valves allow blood to pool in the lower legs.
- Certain medications can worsen swelling, including some blood pressure drugs (such as amlodipine), anti-inflammatory medications like ibuprofen or naproxen, steroids, and some diabetes medications.
- Many seniors take multiple medications and supplements (polypharmacy), which can sometimes interact and contribute to fluid retention.
- Compression socks can help reduce swelling by gently squeezing the legs and encouraging blood flow back toward the heart.
- For many people, moderate compression socks (15–20 mmHg) are a comfortable starting point, but proper sizing is important.
- Reducing sodium (salt) intake can help prevent the body from retaining excess fluid.
- Elevating your legs above heart level for 20–30 minutes several times a day can help fluid drain away from the lower legs.
- Avoid sitting for long periods. Standing, stretching, or walking every 30–60 minutes helps improve circulation.
- Simple exercises like squats, calf raises, and ankle pumps help activate the leg muscles, which act like a natural pump to move blood and fluid back toward the heart.
- Seek medical attention immediately if swelling appears suddenly, occurs in only one leg, is painful or warm, or is accompanied by shortness of breath.
Introduction
Many older adults notice swelling in their feet, ankles, or lower legs as they age. Sometimes it appears after sitting too long. Other times it seems to develop gradually over months or years. Shoes may feel tighter by evening, socks may leave deeper marks on the skin, and legs may feel heavy or uncomfortable.
This condition is known as edema, and it occurs when excess fluid accumulates in the body’s tissues.
In many cases, leg swelling is more of a nuisance than a serious health problem. However, it can sometimes signal issues with the heart, kidneys, circulation, or blood vessels. Knowing the difference between ordinary swelling and something that requires medical attention can help seniors manage the condition safely and comfortably.
Recognizing the Symptoms
Leg swelling can look and feel different depending on the cause. Common symptoms include:
- Swelling in the feet, ankles, or lower legs
- Skin that appears tight or shiny
- Socks are leaving deep marks around the ankles
- A feeling of heaviness or tightness in the legs
- Reduced flexibility in the ankles or feet
- A small indentation left in the skin after pressing on it (called pitting edema)
Many people notice that swelling tends to worsen later in the day, especially after prolonged sitting or standing. It may improve overnight while lying down, when gravity no longer pulls fluid toward the feet.
One of the most important clues doctors use when evaluating leg swelling is whether it occurs in one leg or both.
One Leg vs. Both Legs: A Key Clue
When swelling appears in both legs, it often suggests a condition affecting the body as a whole.
Possible causes include:
- Heart disease
- Kidney disease
- Liver disease
- Medication side effects
- Circulation problems in the leg veins
When swelling occurs in only one leg, it is more likely to involve a problem localized to that leg.
Possible causes include:
- A blood clot
- An injury or trauma
- A blocked vein
- A lymphatic drainage problem
Because blood clots can be dangerous, sudden swelling in one leg should always be evaluated by a doctor.
What Exactly Is Edema?
Edema occurs when fluid leaks from tiny blood vessels into the surrounding tissues.
Under normal circumstances, the body maintains a careful balance of fluid through three systems:
- Blood circulation
- The kidneys, which regulate salt and water balance
- The lymphatic system, which drains excess fluid from tissues
When this balance is disrupted, fluid begins to accumulate in tissues, producing visible swelling.
The legs are particularly vulnerable because gravity pulls fluid downward, and the body must work harder to move blood back toward the heart from the feet.
The Most Common Causes of Leg Swelling
Several conditions can lead to chronic swelling in the legs.
Circulation Problems in the Leg Veins
One of the most common causes in older adults is chronic venous insufficiency.
The veins in the legs contain small valves that help move blood upward toward the heart. Over time, these valves may weaken. When this happens, blood pools in the lower legs, increasing pressure in the veins. Fluid then leaks into the surrounding tissues.
Typical signs include:
- Swelling that worsens throughout the day
- Relief after elevating the legs
- Varicose veins
- Darkening of the skin near the ankles
This type of swelling is extremely common and often develops gradually with age.
Heart Conditions
When the heart cannot pump blood efficiently, fluid may accumulate in the legs.
This is often seen in heart failure, where the heart struggles to circulate blood effectively.
Symptoms may include:
- Swelling in both legs
- Shortness of breath
- Fatigue
- Rapid weight gain due to fluid retention
Kidney Disease
The kidneys regulate the body’s fluid and sodium levels.
When kidney function declines, the body may retain excess salt and water, leading to swelling.
Possible signs include:
- Swelling in both legs
- Puffiness around the eyes
- Foamy urine
- High blood pressure
Blood Clots (Deep Vein Thrombosis)
A blood clot in a deep vein can block circulation in the leg.
Symptoms may include:
- Sudden swelling in one leg
- Pain or tenderness
- Warm or red skin
Even when treated, a blood clot can sometimes cause long-term damage to the valves inside the veins. These valves normally help move blood back toward the heart. When they are damaged, blood may pool in the leg, leading to chronic swelling, discomfort, and post-thrombotic syndrome.
Lymphatic Blockage (Lymphedema)
The lymphatic system helps remove excess fluid from tissues.
If lymph vessels are damaged or blocked, fluid can accumulate in the legs.
Possible causes include:
- Cancer treatment
- Surgery
- Infection
This type of swelling tends to be firm and persistent.
Medications and Supplements That Can Affect Swelling
Many seniors take multiple medications and supplements at the same time. This situation, known as polypharmacy, is very common in older adults.
Some medications can contribute to fluid retention or worsen leg swelling.
Blood Pressure Medications
Some blood pressure medications—particularly calcium channel blockers—can cause ankle swelling.
Common examples include:
- Amlodipine (Norvasc)
- Nifedipine (Procardia)
- Diltiazem (Cardizem)
Other blood pressure medications are less likely to cause swelling and may even help reduce it. These include:
- Lisinopril
- Enalapril
- Losartan
- Valsartan
If swelling develops after starting a new medication, it is worth discussing the issue with your doctor.
Anti-Inflammatory Medications
Common pain relievers known as NSAIDs may promote fluid retention.
Examples include:
- Ibuprofen (Advil)
- Naproxen (Aleve)
Steroid Medications
Steroids such as prednisone can also cause fluid retention.
Diabetes Medications
Some diabetes drugs may worsen edema.
Examples include:
- Pioglitazone (Actos)
- Rosiglitazone
Prostate Medications and Supplements
Many older men take medications or supplements to relieve symptoms of benign prostatic hyperplasia (BPH).
Prescription medications include:
- Tamsulosin (Flomax)
- Terazosin
- Doxazosin
- Finasteride
- Dutasteride
These medications generally do not cause leg swelling, but they may influence blood pressure or circulation.
Many men also take over-the-counter prostate supplements such as:
- Saw palmetto
- Pygeum
- Beta-sitosterol
- Pumpkin seed extract
These supplements are not typically direct causes of edema, but supplements can interact with medications or influence circulation. For this reason, it is important to inform your doctor about all supplements you take, even those purchased without a prescription.
Simple Steps That Can Help Reduce Leg Swelling
Fortunately, several lifestyle strategies can significantly reduce swelling.
Reduce Sodium Intake
Salt encourages the body to retain fluid.
Reducing sodium intake can help prevent fluid buildup. Helpful strategies include:
- Limiting processed foods
- Reducing packaged meals and canned soups
- Cooking with herbs and spices instead of salt
Many doctors recommend aiming for about 2,000 milligrams of sodium per day, especially for people with heart or kidney conditions.
Elevate Your Legs
Because gravity pulls fluid toward the feet, elevating the legs helps fluid return toward the heart.
Try lying down and raising your legs on pillows so that they are slightly above heart level. Rest this way for 20 to 30 minutes, two or three times per day.
Avoid Sitting Too Long
Remaining seated for long periods allows fluid to collect in the lower legs.
Try to stand, stretch, or walk every 30 to 60 minutes. Even brief movement helps stimulate circulation.
Exercises That Help Reduce Swelling
Muscle movement acts like a natural pump for circulation. When the muscles in your legs contract, they help push blood and fluid back toward the heart.
Even gentle exercise can make a difference. One helpful strategy is to set an alarm or reminder on your phone to take a short movement break. Spending just five minutes each hour doing a few simple exercises can help prevent fluid from pooling in the legs.
Regular movement also provides additional health benefits. Muscle activity helps improve mitochondrial function, which means your cells become more efficient at producing energy. Exercise also stimulates the release of beneficial hormones and signaling molecules that support circulation, metabolism, and overall cardiovascular health.
Air Squats
Squats activate large muscles in the legs that help improve circulation.
Stand with your feet shoulder-width apart. Slowly bend your knees as if you are sitting down in a chair, then return to a standing position.
If balance is a concern, hold onto a counter, table, or sturdy chair for support.
Calf Raises
The calf muscles play an important role in pushing blood upward through the veins.
Stand upright and slowly raise your heels so you are standing on your toes. Then lower your heels back down to the floor.
If needed, hold onto a wall or chair for balance.
Ankle Pumps
This simple movement is especially helpful for people with limited mobility.
While sitting or lying down, point your toes away from you, then pull them back toward your face.
Repeat this motion 20 to 30 times.
Exercise Options for Older or Frail Adults
Not everyone can perform standing exercises safely. Fortunately, several seated movements can still improve circulation.
These include:
- Seated marching (lifting one knee at a time)
- Rotating the ankles in circles
- Toe taps while seated
- Seated calf raises
The key is regular movement throughout the day.
Compression Socks: A Simple but Effective Tool
One of the most effective non-medication treatments for chronic leg swelling is compression stockings, often called compression socks.
These specialized socks apply gentle pressure to the legs, helping push blood and fluid upward toward the heart.
They are especially helpful for people with:
- Chronic venous insufficiency
- Varicose veins
- Swelling caused by prolonged sitting or standing
Compression socks use graduated pressure, meaning the compression is strongest at the ankle and gradually decreases toward the calf.
Choosing the Right Compression Level
Compression socks come in different strengths:
- Mild compression: 8–15 mmHg
- Moderate compression: 15–20 mmHg
- Firm compression: 20–30 mmHg
Many seniors find 15–20 mmHg to be a comfortable starting level.
Proper sizing is important. Measuring the ankle and calf circumference before purchasing helps ensure a good fit.
How to Use Them
For best results:
- Put compression socks on in the morning, before swelling begins
- Wear them throughout the day
- Remove them before going to bed
Compression socks work best when combined with walking, exercise, and leg elevation.
When Leg Swelling Is Mostly a Nuisance
For many older adults, swelling is caused by circulation changes in the veins.
This type of swelling typically:
- Develops gradually
- Appears in both legs
- Worsens at the end of the day
- Improves with elevation
Although uncomfortable, it is often manageable with lifestyle adjustments.
When Swelling Requires Medical Attention
Some symptoms suggest a more serious condition.
Seek medical care if swelling:
- Appears suddenly
- Occurs in only one leg
- Is painful, warm, or red
- Occurs with shortness of breath
- Rapidly worsens
These symptoms may indicate a blood clot, heart problem, or kidney issue.
A Simple Rule of Thumb
As a general guide:
Gradual swelling in both legs that improves with elevation is often related to circulation problems in the veins.
But sudden swelling—especially in one leg—should always be evaluated by a doctor.
With the right combination of medical care, lifestyle adjustments, and simple daily habits, most people can successfully manage leg swelling and stay comfortable and active.
Disclaimer: As a Senior Health Advocacy Journalist, I strive to conduct thorough research and bring complex topics to the forefront of public awareness. However, I am not a licensed legal, medical, or financial professional. Therefore, it is important to seek advice from qualified professionals before making any significant decisions based on the information I provide.
Copyright: All text © 2025 James M. Sims and all images exclusive rights belong to James M. Sims and Midjourney unless otherwise noted.
References
Related Cielito Lindo Articles
Sims, J. M. (2026). Why blood pressure matters more than ever: A guide for seniors. Cielito Lindo Senior Living. https://www.cielitolindoseniorliving.com/why-blood-pressure-matters
Sims, J. M. (2026). Empowering seniors: AI tools for effective healthcare advocacy. Cielito Lindo Senior Living. https://cielitolindoseniorliving.com/empowering-seniors-ai-tools-for-effective-healthcare-advocacy/
Sims, J. M. (2026). Ensuring quality care: The crucial role of self-advocacy in a flawed healthcare system. Cielito Lindo Senior Living. https://cielitolindoseniorliving.com/ensuring-quality-care-the-crucial-role-of-self-advocacy-in-a-flawed-healthcare-system/
Sims, J. M. (2026). Op-ed: Activate your inner calm—How stimulating the vagus nerve transforms health. Cielito Lindo Senior Living. https://cielitolindoseniorliving.com/op-ed-activate-your-inner-calm-how-stimulating-the-vagus-nerve-transforms-health/
Sims, J. M. (2026). Op-ed: The neuroscience of gratitude—A caregiver’s secret weapon. Cielito Lindo Senior Living. https://cielitolindoseniorliving.com/op-ed-the-neuroscience-of-gratitude-a-caregivers-secret-weapon/
Sims, J. M. (2026). Op-ed: One-size-fits-all medicine is failing our seniors. Cielito Lindo Senior Living. https://cielitolindoseniorliving.com/op-ed-one-size-fits-all-medicine-is-failing-our-seniors/
Articles and Guides
American Heart Association. (n.d.). Understanding blood pressure readings. https://www.heart.org/en/health-topics/high-blood-pressure/understanding-blood-pressure-readings
American Heart Association. (n.d.). High blood pressure and older adults. https://www.heart.org/en/health-topics/high-blood-pressure/high-blood-pressure-and-older-adults
Cleveland Clinic. (n.d.). DASH diet: Healthy eating to lower your blood pressure. https://my.clevelandclinic.org/health/articles/17055-the-dash-diet
Harvard Health Publishing. (2019). How to lower blood pressure without medication. https://www.health.harvard.edu/heart-health/how-to-lower-blood-pressure-without-medication
Johns Hopkins Medicine. (n.d.). Nitric oxide and blood pressure. https://www.hopkinsmedicine.org/health/wellness-and-prevention/nitric-oxide-and-blood-pressure
Mayo Clinic. (2023, June 21). High blood pressure (hypertension). https://www.mayoclinic.org/diseases-conditions/high-blood-pressure/symptoms-causes/syc-20373410
National Institute on Aging. (n.d.). High blood pressure and older adults. https://www.nia.nih.gov/health/high-blood-pressure
U.S. Department of Health & Human Services. (2023). Dietary Approaches to Stop Hypertension (DASH) eating plan. National Heart, Lung, and Blood Institute. https://www.nhlbi.nih.gov/education/dash-eating-plan
Websites
American Heart Association. https://www.heart.org
Cleveland Clinic. https://my.clevelandclinic.org
Mayo Clinic. https://www.mayoclinic.org
National Institute on Aging. https://www.nia.nih.gov
National Heart, Lung, and Blood Institute. https://www.nhlbi.nih.gov
PubMed (National Library of Medicine). https://pubmed.ncbi.nlm.nih.gov
Cleveland Clinic. https://my.clevelandclinic.org
Mayo Clinic. https://www.mayoclinic.org
National Institute on Aging. https://www.nia.nih.gov
National Heart, Lung, and Blood Institute. https://www.nhlbi.nih.gov
PubMed (National Library of Medicine). https://pubmed.ncbi.nlm.nih.gov
Research Papers
Bryan, N. S., & Ivy, J. L. (2015). Inorganic nitrate and nitrite: Evidence to support consideration as dietary nutrients. Nutrition Research, 35(8), 643–654. https://doi.org/10.1016/j.nutres.2015.06.001
Kapil, V., et al. (2010). Inorganic nitrate supplementation lowers blood pressure in humans: Role for nitrite-derived NO. Hypertension, 56(2), 274–281. https://doi.org/10.1161/HYPERTENSIONAHA.110.153536
Larsen, F. J., Ekblom, B., Sahlin, K., Lundberg, J. O., & Weitzberg, E. (2006). Effects of dietary nitrate on blood pressure in healthy volunteers. New England Journal of Medicine, 355(26), 2792–2793. https://doi.org/10.1056/NEJMc062800
Li, Y., et al. (2021). Lifestyle factors of hypertension in older adults: A review of the evidence. Current Hypertension Reports, 23(9), 1–10. https://doi.org/10.1007/s11906-021-01141-2
Raubenheimer, P. J., et al. (2021). Aged garlic extract improves blood pressure and arterial stiffness in patients with hypertension: A randomized, double-blind, placebo-controlled study. Integrated Blood Pressure Control, 14, 71–79. https://doi.org/10.2147/IBPC.S298992
Villafuerte, F. C., & Cárdenas, R. (2016). High blood pressure and aging: The role of nitric oxide signaling in vascular function. International Journal of Molecular Sciences, 17(12), 2064. https://doi.org/10.3390/ijms17122064
Books
Appel, L. J., & Moore, T. J. (2006). The DASH diet action plan: Based on the NIH research – Dietary Approaches to Stop Hypertension. Marlowe & Company. ISBN: 9781569243474
Houston, M. C. (2011). What your doctor may not tell you about hypertension: The revolutionary nutrition and lifestyle program to help fight high blood pressure. Grand Central Life & Style. ISBN: 9780446699090
Ignarro, L. J. (2005). No more heart disease: How nitric oxide can prevent—even reverse—heart disease and strokes. St. Martin’s Press. ISBN: 9780312335823
O’Brien, E., & Atkins, N. (2014). ABC of hypertension (6th ed.). BMJ Books. ISBN: 9781118760585
Wright, J. V., & Lenard, L. (2001). Hypertension and your health: A self-help guide. Smart Publications. ISBN: 9781890572153
Additional Resources:
View the video here.
Highlights:
0:07 – Tom Mackey introduces the topic of swollen feet and ankles, emphasizing its seriousness.
0:19 – He mentions there are nine causes of swelling, which he will discuss.
1:08 – The first common cause is heart problems, including congestive heart failure and lung issues.
2:19 – Pregnancy is highlighted as another cause, affecting fluid levels and blood flow.
2:53 – Lymphedema is discussed, characterized by thick, dry skin and swelling.
3:49 – Venous insufficiency and varicose veins are explained as causes of swelling due to blood flow issues.
4:45 – The importance of leg pumps for those who sit all day is emphasized.
5:31 – Blood clots, particularly deep vein thrombosis, are identified as a serious concern.
6:51 – Risk factors for blood clots, including family history and obesity, are outlined.
8:01 – The video concludes with advice on supportive shoes for swollen feet.
8:20 – Mackey demonstrates how gravity affects the arch of the foot, leading to swelling.
9:01 – He explains that stiffness in the hamstrings can cause feet to not absorb shock properly.
10:24 – The importance of good orthotics and shoes to reduce stress on the feet is emphasized.
10:44 – Mackey notes that uneven hips can lead to swelling in the legs.
11:01 – He suggests using a frozen water bottle to massage sore foot muscles.
12:12 – Stretching thighs, hamstrings, and calf muscles is recommended for relief.
12:45 – Mackey warns against relying solely on pain pills for long-term relief.
13:04 – He stresses the need for biomechanical assessments to address swelling issues.
14:06 – The significance of symmetry in running and its impact on soreness is discussed.
15:02 – Mackey advises incorporating stretching and offloading techniques for better health.
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