Symptom
Leg Swelling (Edema)
Leg and ankle swelling that builds through the day and eases overnight is one of the most common signs of a vein problem. When the leg veins cannot move blood upward efficiently, fluid backs up into the tissues, and the ankles swell.
Medically reviewed by Dr. Roger Eduardo, MD, FASMBS, Board-Certified General Surgeon. Last reviewed August 2026.
Book a consultation →Understanding Leg Swelling (Edema)
Swelling, or edema, has many causes, from heart and kidney issues to medications, but chronic swelling isolated to the legs and worse by evening frequently points to venous reflux. The pooled blood raises pressure in the lower leg and pushes fluid into the surrounding tissue.
A vein evaluation with duplex ultrasound sorts out whether failing vein valves are the cause. When they are, closing the refluxing vein often reduces the swelling and the heaviness that comes with it. When the cause is not venous, we help point you toward the right care.
Symptoms
What it can feel like
- ◆Swelling of the ankles and lower legs, worse at day's end.
- ◆A feeling of tightness, heaviness or aching.
- ◆Sock or shoe marks that linger.
- ◆Often accompanied by varicose veins or skin changes.
Causes
What drives it
- ◆Venous reflux and chronic venous insufficiency.
- ◆Prior deep vein thrombosis.
- ◆Prolonged standing or sitting.
- ◆Non-vein causes such as heart, kidney, thyroid or medication effects.
When to seek care
Sudden swelling of one leg, especially with pain, warmth or redness, can signal a blood clot and needs urgent evaluation. Chronic, gradual swelling of both lower legs is worth a vein evaluation, particularly if you also have varicose veins or skin changes.
How we treat Leg Swelling (Edema)
Care begins with the right diagnosis, then a plan matched to you by one physician who follows you through it.
Condition FAQ
Leg Swelling (Edema): common questions
Can't find your answer here? Call us at (470) 742-1832 or book a consultation, we'll answer every question before you commit to anything.
Day's-end swelling that improves overnight is a classic pattern for venous reflux: standing lets blood pool in the legs when the vein valves are weak, and fluid seeps into the tissues. A vein evaluation can confirm whether that is the cause.
Sudden swelling of one leg with pain, warmth or redness can indicate a blood clot (DVT) and should be evaluated urgently. Gradual swelling of both legs is less urgent but still worth investigating.
When the swelling is driven by venous reflux, closing the failing vein often reduces it, along with the heaviness and aching. If the cause is not venous, we help direct you to the appropriate care.
Start your journey
Concerned about leg swelling (edema)?
Book a consultation with Dr. Eduardo for a clear diagnosis and a plan matched to you.
