Heavy, Achy Legs? It Could Be Chronic Venous Insufficiency

Why Your Leg Discomfort Might Be More Than Just Fatigue. You know that feeling after a long day on your feet—your legs feel heavy, tired, maybe even a little swollen. Most people shrug it off as normal. But what if it’s not just fatigue? What if it’s something deeper—something that’s been quietly developing over time? Welcome to the world of chronic venous insufficiency, or CVI—a condition that affects millions of Americans but often flies under the radar until the symptoms become hard to ignore. Let’s unpack what CVI really is, why it happens, and—most importantly—how you can finally find relief.

So, What Is Chronic Venous Insufficiency?

In the simplest terms, CVI is a condition where the veins in your legs have trouble sending blood back up to your heart. Normally, your leg veins have one-way valves that help blood fight gravity and flow upward. But when those valves weaken or become damaged, blood starts to flow backward and pool in the veins.

That backflow creates pressure, causing veins to bulge, legs to swell, and skin to ache, itch, or discolor. Over time, it can lead to more serious problems like varicose veins, ulcers, and even blood clots.

What Does CVI Feel Like?

You might already be experiencing the signs of CVI and not even realize it. Common symptoms include:

• Heavy, aching, or tired legs (especially by the end of the day)

• Swelling around the ankles or calves

• Visible varicose or spider veins

• Cramping or throbbing in the lower legs

• Skin that’s itchy, dry, or darkening over time

• Open sores or ulcers that are slow to heal

The tricky part? These symptoms often come and go—until they don’t.

What Causes It?

There isn’t one single cause of chronic venous insufficiency. Instead, it’s usually a mix of risk factors that add up over time. These can include:

• Genetics – If your parents had vein issues, you may be more likely to develop them too.

• Prolonged standing or sitting – If your job keeps you on your feet or glued to a chair, your veins work harder.

• Pregnancy – Increased blood volume and hormonal changes can put pressure on your veins.

• Aging – Veins naturally weaken with age.

• Obesity – More weight means more pressure on your vein walls.

• Previous blood clots or leg trauma – These can damage the valves and restrict blood flow.

Why CVI Shouldn’t Be Ignored

We get it—aching legs might not seem like a big deal at first. But untreated CVI is progressive. That means it doesn’t just stay the same; it gets worse over time.

If ignored, it can lead to:

• Painful varicose veins

• Leg ulcers that are difficult to heal

• Skin infections and hardening of the tissues

• A major drop in quality of life

Bottom line? It’s not just a cosmetic concern. It’s a circulation problem—and your body is trying to tell you something.

Compression Stockings: Helpful, But Not a Cure

One of the most common “quick fixes” for CVI is compression stockings. And while they do help relieve symptoms by supporting blood flow, they don’t solve the underlying issue—those faulty vein valves.

Wearing compression stockings is like bailing water out of a boat with a leak. You’re managing the overflow, but the leak is still there.

They’re great for short-term support, travel, or post-procedure recovery, but they’re not a long-term solution.

What Actually Fixes the Problem?

Thanks to modern medicine, we no longer need invasive surgery to treat CVI. Today’s treatments are minimally invasive, office-based, and take less than an hour. Some of the most effective options include:

• Endovenous Laser Ablation (EVLA) – Uses laser energy to seal the problem vein from the inside.

• Radiofrequency Ablation (RFA) – A heat-based method similar to EVLA.

• VenaSeal – A medical adhesive that gently closes the diseased vein.

• Ultrasound-Guided Foam Sclerotherapy – Foam is injected to collapse the faulty vein.

The best part? These procedures treat the root of the issue—not just the symptoms. No general anesthesia, no hospital stay, and most people return to their normal routines the same day.

When Should You See a Vein Specialist?

If you’re experiencing any of the following, it’s time to schedule a consult:

• Legs that ache, swell, or feel heavy often

• Itching, burning, or skin changes near your ankles

• Varicose veins that are worsening

• Sores or ulcers that don’t heal

• Discomfort that’s interfering with your sleep or activity

Don’t wait until things get worse. Like any health condition, early intervention can make all the difference.

Real Relief Starts Here—At Premier Vein & Vascular Center

At Premier Vein & Vascular Center, we specialize in diagnosing and treating chronic venous insufficiency and varicose veins using the latest minimally invasive techniques.

Led by a board-certified vein specialist and interventional radiologist, we provide personalized care tailored to your symptoms, goals, and lifestyle. With two convenient Houston-area clinics, we’re proud to offer same-week consultations and long-term results.

Whether you’ve been told to “just wear stockings” or you’re ready for a real solution, we’re here to help.

Final Thoughts: Don’t Settle for Discomfort

Living with CVI isn’t just uncomfortable—it can limit your movement, disrupt your confidence, and take a toll on your health. The good news? You don’t have to just live with it. If your legs are sending you signals, it’s time to listen. Let’s fix the problem—not just mask the symptoms. Schedule your consultation today at Premier Vein & Vascular Center and get back to feeling like yourself again. At Premier Vein & Vascular Center, we’re proud to provide expert care led by Dr. Syed Raza, MD, a board-certified Vein Specialist and Interventional Radiologist with more than 20 years of experience serving the Greater Houston area. Our experienced and dedicated team delivers personalized, minimally invasive treatments designed to restore comfort and confidence. In addition to patients from Houston and surrounding communities, we regularly welcome individuals from across the country who travel to see Dr. Raza for trusted care in varicose vein treatment, spider veins, and even vascular-related knee pain.

The Stages of Chronic Venous Insufficiency

Vein specialists use a standard scale, called the CEAP classification, to describe how far venous disease has progressed. Knowing your stage helps explain your symptoms, guides treatment and is often required by insurance plans.

Not everyone moves through every stage, and progression is often slow. The key point is that the earlier stages are much easier to treat. Once skin changes appear, the tissue is already under strain, and it heals more slowly if it breaks down.

Skin Changes That Signal Advanced CVI

The skin of the lower leg is where long-standing vein pressure shows most clearly. These are the changes we look for during an examination:

• Hyperpigmentation: brown or reddish-purple staining around the ankles from iron left behind by red blood cells that leak out of the veins
• Venous eczema: itchy, red, scaly patches that may weep during flares
• Lipodermatosclerosis: skin and fat above the ankle that become hard, tight and sometimes tender, giving the lower leg an inverted champagne-bottle shape
• Atrophie blanche: small white, scar-like patches with tiny red dots, an area at high risk of ulceration
• Corona phlebectatica: a fan of small blue and red veins around the inner ankle and foot, an early warning sign

If you have any of these, it is a sign that the condition has moved beyond a cosmetic concern and deserves a full vein evaluation. Treating the reflux at this stage can help protect the skin and lower the risk of a venous ulcer.

Superficial vs. Deep Vein Problems in CVI

CVI can start in different parts of the vein system, and the source makes a big difference to treatment.

Superficial reflux

Most commonly, the leaking valves are in the superficial veins, especially the great and small saphenous veins just under the skin. This is the type that responds very well to office-based ablation, because these veins can be closed safely and blood reroutes through the healthy deep veins.

Deep vein damage or blockage

In some patients, the deep veins are the problem. A previous deep vein thrombosis can scar the deep veins and destroy their valves, a condition called post-thrombotic syndrome. Narrowing or compression of a large vein in the pelvis can also obstruct outflow from the leg. These patients often have more swelling and skin changes, and compression plays a larger role in their care. Careful ultrasound and sometimes additional imaging are needed to plan treatment.

Perforator veins

Perforator veins connect the superficial and deep systems. When their valves fail, high pressure from the deep veins is pushed outward into the skin, often near areas of skin damage or ulcers. Selected perforators can be treated with targeted procedures.

How We Evaluate Chronic Venous Insufficiency

At Premier Vein and Vascular Center, a CVI evaluation is designed to find out exactly where the reflux or blockage is and how far it has progressed.

1. Focused history. We ask about heaviness, aching, swelling, cramps, itching, wounds, prior clots, pregnancies, your job and how symptoms affect your daily life.
2. Examination. We examine your legs standing and lying down, assign a clinical stage, and check pulses in the feet to make sure the arteries are healthy enough for compression.
3. Venous duplex ultrasound. A detailed venous ultrasound in our IAC-accredited vascular lab maps the superficial, deep and perforator veins and measures how long blood flows backward in each. An ankle-brachial index is added if arterial disease is a concern.
4. A clear plan. We explain your stage, which veins are responsible and the treatment options that fit, including what insurance usually requires before a procedure.

Living Well With CVI: Daily Habits That Matter

Even after treatment, CVI is a long-term condition, and daily habits help keep symptoms under control:

• Walk every day; the calf muscle is the main pump that moves blood out of the legs
• Keep your ankles flexible with stretches and ankle circles, since stiff ankles weaken the calf pump
• Raise your legs above heart level for 15 to 20 minutes once or twice a day
• Wear compression during long shifts, flights and car trips
• Moisturize the lower legs daily to protect fragile skin
• Protect your shins and ankles from knocks and scratches, which can be slow to heal
• Maintain a healthy weight and avoid smoking

For a closer look at office treatments, see our pages on venous insufficiency and non-thermal vein ablation.

Getting Checked for CVI in Houston

If your legs feel heavy and swollen by evening, the skin around your ankles is changing color or texture, or a wound on your lower leg is slow to heal, it is a good time to see a vein specialist. Patients from Houston, Katy and the surrounding area can be evaluated by Dr. Syed Raza, a fellowship-trained interventional radiologist and former Chief of Interventional Radiology at UTMB Galveston and Memorial Hermann Memorial City, at our vein clinic in Houston. Most insurance plans, including Medicare, are accepted.

Frequently Asked Questions

Is chronic venous insufficiency serious?

CVI is not usually life-threatening, but it is progressive and can lead to skin damage, infections and slow-healing ulcers if left untreated. Early diagnosis and treatment can relieve symptoms and help prevent these complications.

Can chronic venous insufficiency be cured?

Damaged valves do not repair themselves, but closing the leaking superficial veins removes the main source of high pressure for many patients and can greatly reduce symptoms. Ongoing healthy habits and follow-up help keep the condition controlled.

What is the first test for venous insufficiency?

A venous duplex ultrasound is the standard first test. It is painless, uses no radiation, and shows which veins are leaking, how severe the reflux is and whether there are any clots.

Is walking good for chronic venous insufficiency?

Yes. Walking activates the calf muscle pump, which pushes blood up out of the legs and reduces swelling and heaviness. Most people with CVI benefit from walking every day.

What happens if chronic venous insufficiency is not treated?

Over time, untreated CVI can cause worsening swelling, skin discoloration, hardening of the skin and venous ulcers. It can also increase the risk of superficial vein clots and limit daily activity.

Does Medicare cover treatment for venous insufficiency?

Medicare and most insurance plans generally cover evaluation and medically necessary treatment of CVI when symptoms and ultrasound findings meet their criteria, which may include a trial of compression stockings.

Trusted Health Resources

1. Chronic Venous Insufficiency, Society for Vascular Surgery
2. Venous Insufficiency, MedlinePlus Medical Encyclopedia (NIH)
3. Varicose Veins and Spider Veins, MedlinePlus (NIH)