Venous reflux disease occurs when the valves in the veins do not work properly, allowing blood to flow backward and pool in the legs. This can increase pressure in the veins and cause symptoms such as leg swelling, aching, heaviness, visible varicose veins, and skin changes.
These symptoms may become more noticeable after long periods of standing or sitting and may improve when the legs are elevated. Because venous reflux can develop gradually, it is easy to mistake the early signs for everyday fatigue or the effects of aging.
Understanding the symptoms of venous reflux disease, how it is diagnosed, and which treatments may help can make it easier to recognize when it is time to seek an evaluation from a vein specialist.

What Is Venous Reflux Disease?
Venous reflux occurs when the valves inside the veins allow blood to flow backward instead of moving efficiently toward the heart. Normally, these small valves open to let blood move upward and close to prevent it from flowing in the wrong direction.
When the valves weaken or become damaged, blood can flow backward and collect in the lower legs. This increases pressure inside the veins, which can contribute to swelling, discomfort, varicose veins, and other signs of chronic venous disease.
Venous reflux can affect superficial veins near the surface of the skin as well as deeper veins within the legs. The location and severity of the problem help determine which treatments may be appropriate.
Venous reflux is closely associated with chronic venous insufficiency (CVI), a condition in which the veins have difficulty returning blood to the heart effectively. Although the terms are related, they are not always interchangeable in every clinical context.
Common Symptoms of Venous Reflux Disease
Symptoms can vary from person to person. Some people notice visible veins first, while others experience swelling, aching, or changes in their skin. Symptoms may worsen throughout the day, particularly after extended periods of sitting or standing.
Common signs of venous reflux disease include:
Leg Swelling
Swelling in the ankles, feet, or lower legs can be an early sign of venous disease. It may be mild in the morning and become more noticeable as the day progresses. Prolonged sitting or standing can make swelling worse.
Aching, Heaviness, and Fatigue
Some people describe their legs as feeling heavy, tired, sore, or difficult to move comfortably. These sensations may interfere with walking, standing, exercise, or other daily activities.
Throbbing, Burning, or Cramping
Venous reflux can cause aching, throbbing, burning, or cramping sensations in the legs. Some people notice more discomfort after standing for long periods or toward the end of the day.
Skin Discoloration
Increased pressure in the veins can damage small blood vessels and contribute to changes in the surrounding skin. The skin around the ankles or lower legs may become brownish or reddish over time. These changes can be a sign of more advanced chronic venous disease and should be evaluated by a healthcare professional.
Visible Varicose Veins
Varicose veins are enlarged, twisted veins that often appear close to the skin’s surface. They can develop when blood pools in superficial veins and pressure causes the veins to enlarge. Some varicose veins cause discomfort, while others may be primarily a cosmetic concern.
Skin Changes and Irritation
Chronic venous pressure can contribute to dry, itchy, irritated, or inflamed skin around the lower legs and ankles. Some people develop a condition called stasis dermatitis, which can cause redness, scaling, itching, and discoloration.
Venous Leg Ulcers
In advanced cases, chronic venous disease can lead to open sores, often around the ankles or lower legs. These wounds may heal slowly and require medical care to support healing and reduce the risk of complications.
Not everyone with venous reflux experiences all these symptoms. Persistent swelling, discomfort, or skin changes are good reasons to seek an evaluation, even if visible varicose veins are absent.

Types of Venous Reflux Disease
Venous reflux can affect different parts of the venous system. Identifying which veins are involved helps a specialist determine the most appropriate approach to care.
Superficial Venous Reflux
Superficial venous reflux occurs in veins located close to the surface of the skin. It is commonly associated with varicose veins, leg aching, swelling, and other symptoms of chronic venous disease.
Depending on the veins involved and the severity of the reflux, treatment may include conservative measures or a minimally invasive procedure to close the affected vein.
Deep Venous Reflux
Deep venous reflux occurs when valves in the veins located deeper within the leg do not prevent blood from flowing backward effectively. It can contribute to swelling, discomfort, and other signs of chronic venous disease.
Some people have both superficial and deep venous reflux. Because treatment decisions depend on the overall condition of the venous system, a specialist may need to evaluate the affected veins before recommending a treatment plan.
Venous reflux is different from deep vein thrombosis (DVT), which occurs when a blood clot forms in a deep vein. Although both conditions involve the venous system, they are distinct and require different evaluations and treatments.
How Is Venous Reflux Disease Diagnosed?
If you experience persistent leg swelling, aching, heaviness, visible veins, or skin changes, a vein specialist can evaluate your symptoms and determine whether venous reflux may be contributing to them.
Diagnosis typically involves a review of your medical history, a physical examination, and diagnostic testing when appropriate.
Venous Duplex Ultrasound
A venous duplex ultrasound is a common test used to evaluate venous reflux. This noninvasive test uses sound waves to visualize the veins and assess blood flow.
During the examination, the specialist evaluates whether blood is flowing in the expected direction or moving backward through the veins. The results help identify which veins are affected and guide decisions about whether conservative care or a vein procedure may be appropriate.
Additional Testing
In some cases, additional tests may be recommended to assess circulation or investigate other possible causes of symptoms. The need for further testing depends on the patient’s symptoms, medical history, and initial findings.
An accurate diagnosis is important because leg swelling and discomfort can have causes other than venous reflux. A specialist can help determine what is contributing to your symptoms and which treatment options may be suitable.
Treatment Options for Venous Reflux Disease
Treatment depends on the location and severity of the reflux, the symptoms a patient experiences, and the findings from a vein evaluation. Some patients benefit from conservative measures such as compression and regular movement, while others may be candidates for minimally invasive procedures that close or seal affected veins.
A vein specialist can explain the potential benefits and limitations of each option based on the individual diagnosis.
Lifestyle and Conservative Treatments
Conservative measures may help manage symptoms and support circulation. They are often part of a treatment plan, although they do not repair damaged vein valves.
Common approaches include:
- Compression stockings: Medical compression garments apply graduated pressure to the legs, helping manage swelling and support venous circulation. A healthcare professional can advise whether compression is appropriate for your condition.
- Leg elevation: Raising the legs when resting may help reduce swelling and relieve pressure.
- Regular physical activity: Walking and other appropriate forms of movement activate the calf muscles, which help push blood back toward the heart.
- Weight management: For people who are overweight, managing weight may help reduce pressure on the venous system.
- Breaking up long periods of sitting or standing: Changing positions and moving regularly can help reduce prolonged pooling of blood in the legs.
These measures may improve comfort, but they do not eliminate the underlying reflux when vein valves are damaged. If symptoms persist, a specialist can discuss whether additional treatment may help.
Minimally Invasive Vein Treatments
When venous reflux causes ongoing symptoms or complications, a specialist may recommend a minimally invasive procedure. The appropriate treatment depends on the affected vein, ultrasound findings, and the patient’s overall health.
Common options include:
Sclerotherapy
Sclerotherapy involves injecting a specialized solution into targeted veins, causing them to close. The body gradually absorbs the treated veins. This treatment is commonly used for certain smaller varicose veins and other suitable superficial veins. Its role in treating reflux depends on the vein involved.
Radiofrequency Ablation
Radiofrequency ablation uses heat delivered through a catheter to close a malfunctioning vein. Blood is then redirected through other healthy veins. It is commonly used to treat reflux in selected superficial veins and is generally performed as an outpatient procedure.
VenaSeal™
VenaSeal uses a medical adhesive to close a targeted vein from the inside. Unlike thermal ablation, it does not use heat to seal the vein. It may be an option for eligible patients with certain types of superficial venous reflux.
These procedures are designed to treat specific malfunctioning veins and reduce backward blood flow. Not every procedure is appropriate for every patient, and a specialist can explain which option best matches the diagnosis.
Surgical Treatment
Surgery may be considered in selected cases when other treatments are not suitable or when the anatomy and severity of the disease call for a surgical approach. The need for surgery depends on the individual condition and treatment goals.
Your vein specialist can explain the available options, what each procedure involves, and what to expect during recovery.
Why Early Evaluation Matters
Venous reflux disease can progress over time. Persistent venous pressure may contribute to worsening swelling, skin discoloration, inflammation, and venous leg ulcers. These complications can affect comfort, mobility, and quality of life.
Seeking an evaluation when symptoms first appear can help identify the cause and clarify which management options may be appropriate. Treatment cannot guarantee that the condition will never progress or return, but an individualized plan can help manage symptoms and address the affected veins.
Sudden swelling in one leg, particularly when accompanied by pain, warmth, or redness, requires prompt medical assessment because it may indicate a blood clot or another urgent condition. Chest pain or shortness of breath may signal a medical emergency and requires immediate emergency care.
Frequently Asked Questions
No. Venous reflux disease involves backward blood flow caused by vein valves that do not function properly. Varicose veins are enlarged, twisted veins that may develop as a result of increased pressure in superficial veins. A person can have venous reflux without obvious varicose veins, so symptoms and diagnostic findings both matter.
Venous reflux caused by damaged or weakened vein valves does not typically resolve on its own. Elevating the legs, moving regularly, and using compression when appropriate may help manage symptoms, but these measures do not repair the underlying valve dysfunction. A specialist can explain whether a procedure may be beneficial.
Venous reflux develops when vein valves weaken or become damaged. Age, family history, pregnancy, and prolonged periods of standing may contribute to the development of chronic venous disease. The causes and contributing factors can vary from person to person.
Venous reflux disease involves blood flowing backward because vein valves do not work properly. DVT occurs when a blood clot forms in a deep vein. These are different conditions that require different evaluations and treatments. Sudden leg swelling, pain, warmth, or redness should be assessed promptly, and chest pain or shortness of breath requires emergency medical care.
Consider scheduling an evaluation if you experience ongoing leg swelling, aching, heaviness, visible varicose veins, persistent itching, or skin discoloration around the ankles or lower legs. A specialist can assess your symptoms, determine whether venous reflux is present, and discuss appropriate treatment options.
Find Expert Vein Care Near You
Leg pain, swelling, and visible vein changes can affect everyday activities, but you do not have to ignore persistent symptoms. United Vein & Vascular Centers provides evaluations and treatment options for a range of venous conditions.
Our specialists can help assess your symptoms, explain your diagnosis, and discuss a treatment plan based on your needs and the findings of your evaluation.
If you are experiencing symptoms of venous reflux disease, find a United Vein & Vascular Centers clinic near you and schedule a consultation to discuss your concerns and next steps.

