CONDITIONS · MARYLAND & VIRGINIA
Leg Pain & Swelling
New or persistent leg pain and swelling deserve an explanation. The pattern can help distinguish a vein concern from a clot, medication effect or another health condition.
What causes leg pain and swelling?
Leg pain and swelling can come from fluid buildup, inflammation, injury, vein disease, a blood clot, medication effects, infection, or heart or kidney conditions. Swelling in one leg can mean something different from swelling in both. Symptoms alone cannot identify the cause.
What can the pattern of swelling tell you?
- Whether one leg or both legs are affected.
- Whether swelling appeared suddenly or gradually, and whether it improves overnight or with elevation.
- Whether there is warmth, redness, tenderness, a visible vein, skin discoloration or skin breakdown.
- Whether chest pain, fainting or sudden shortness of breath occurs with the leg symptoms.
Can venous insufficiency cause pain and swelling?
Yes. When vein valves do not move blood upward effectively, blood can pool in the legs and contribute to aching, heaviness, swelling, visible veins or skin changes. These symptoms can overlap with other conditions, so an examination and sometimes an ultrasound are needed before attributing them to venous insufficiency.
How are leg pain and swelling evaluated?
Your clinician reviews when symptoms began, how they change during the day, your medicines and your medical history, then examines both legs. A venous ultrasound may be used when a clot or vein-valve problem is suspected. Other tests or referral may be needed if the swelling appears related to a condition outside the vascular system.
How are vascular causes treated?
Treatment depends on the diagnosis. A clinician-directed plan may include movement, elevation or prescribed compression for some vein conditions, and a vein procedure may be considered when a confirmed problem and your symptoms make it appropriate. Other causes need different care. Do not stop medicines or start strong compression without medical advice.
What to bring
Bring a medication list, recent test results and details of any previous clot or vein treatment. If swelling varies during the day, describe that change. Contact a clinician promptly for new swelling rather than waiting for it to become a long-term concern.
More about this concern
Your questions, answered.
Is swelling in only one leg serious?
It can have several causes, but sudden one-sided swelling with pain, warmth or redness needs urgent medical assessment for a possible blood clot.
Can medications cause leg swelling?
Yes. Some medicines can contribute to swelling. Bring a complete medication list to your appointment and do not stop a prescribed medicine without guidance.
Should I use compression stockings?
Ask a clinician whether compression is appropriate and which type to use. The cause of swelling and the arterial blood supply should be considered first.
Does leg swelling always mean venous insufficiency?
No. Vein disease is one possible explanation, but swelling can also reflect a clot, medication effect, infection or another health condition.
Let’s talk about your next step.
Our team can help you choose an office in Maryland or Virginia and confirm where your evaluation or procedure will take place.
Patient education sources
General educational information, not a diagnosis or an individual treatment recommendation. Your clinician can explain which options are appropriate for you.