Legs that ache and feel like lead by end of day — especially when rest helps and standing makes it worse — are telling you something about your veins. It's one of the most common vascular symptoms, and it's diagnosable in 30 minutes at home.
Leg veins don't just carry blood — they fight gravity to push it back up toward the heart. One-way valves inside the veins close after each pump to prevent backsliding. When those valves weaken, blood doesn't fully return and instead pools in the lower legs. The result is that heavy, waterlogged, aching sensation that builds through the day and eases when you lie down. It's called chronic venous insufficiency, and it affects millions of people — many of whom are told it's "just being tired" or "normal aging."
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Heavy, achy legs — especially by evening — is a classic sign of vein valves not closing properly. A venous duplex ultrasound maps exactly which valves are failing, at home, in 30 minutes. No referral. Results in 24–48 hours.
If one leg is suddenly much more swollen, red, warm, and painful than the other — this may indicate a deep vein thrombosis (DVT, blood clot), which requires urgent evaluation. Go to the emergency room or urgent care immediately.
Chronically heavy, tired legs have a well-defined list of venous and arterial causes. Here's what to consider:
The most common vascular cause of chronically heavy legs. The venous valves in the great saphenous, small saphenous, and perforating veins fail to close properly after each contraction. Blood that should be moving upward instead flows backward (reflux) and pools in the leg. The resulting venous hypertension causes swelling, heaviness, aching, and fatigue that worsens with prolonged standing or sitting and improves when legs are elevated. Risk factors include prolonged standing, prior pregnancies, obesity, older age, and family history.
Visible varicose veins are the above-the-skin sign of venous insufficiency — but the underlying problem is usually in the deeper venous system that isn't visible. Someone can have significant reflux and valve failure causing heavy, aching legs while having only minimal visible varicosities. Conversely, people with prominent varicose veins may have few symptoms. A venous duplex maps the entire deep and superficial venous system, not just the visible surface, to understand the full picture of what's failing.
Peripheral arterial disease (PAD) reduces blood flow to the legs through narrowed arteries. While PAD classically causes cramping or pain with walking that eases with rest (claudication), some people — particularly older adults or diabetics with neuropathy — may experience a more diffuse heaviness and fatigue rather than sharp pain. PAD is evaluated with an arterial duplex or ankle-brachial index (ABI). If your heaviness is more noticeable during activity than at rest and you have cardiovascular risk factors, PAD is worth evaluating separately.
For heavy, tired legs with the typical worsening-by-evening, improving-with-elevation pattern, a venous duplex ultrasound is the right first study.
Venous Duplex · $397
A duplex ultrasound scan of the major leg veins from groin to ankle. Evaluates valve competency at each level of the venous system — identifying reflux (backward blood flow when valves fail), measuring reflux duration, and mapping which vein segments are dysfunctional. Also evaluates for deep vein thrombosis (DVT). Completely non-invasive, no radiation, no compression needed.
Traditional Path
BlackPoint Diagnostics
Untreated venous insufficiency doesn't stay stable — it progresses. Stage 1 is heaviness and aching. Stage 2 is visible varicose veins. Stage 3 is edema. Stage 4 is skin changes (hyperpigmentation, lipodermatosclerosis). Stage 5–6 is venous ulceration. Identifying valve failure early — while it's still in the reversible stages — gives the most treatment options and the best outcomes.
Emanuel comes to your home with hospital-grade portable ultrasound equipment. For a venous duplex, you lie on your back (or stand briefly for specific augmentation maneuvers that test valve function). No preparation is required — no fasting, no special clothing.
Ultrasound gel is applied to the leg and the transducer is passed from the groin downward, evaluating each major vein segment. At each level, the probe's Doppler function measures the direction and duration of blood flow — identifying segments where blood moves backward (reflux) when it should be moving toward the heart. The scan evaluates the great saphenous vein, small saphenous vein, femoral vein, popliteal vein, perforating veins, and calf veins.
The full study takes approximately 30 minutes. It is completely painless and uses no radiation. You see your own venous system in real time on-screen during the scan.
Emanuel walks you through key findings — which valves are competent, which are refluxing, and where the reflux is most significant — before leaving. The formal written report is delivered within 24–48 hours, ready to share with any vascular surgeon or specialist you're referred to.
Heavy, tired legs that worsen through the day and improve overnight are a hallmark of chronic venous insufficiency — failed vein valves that allow blood to pool in the lower legs. The resulting venous hypertension causes heaviness, aching, and fatigue. A venous duplex ultrasound maps valve function throughout the venous system and can identify exactly where reflux is occurring.
Chronic venous insufficiency (CVI) occurs when venous valves that push blood up from the legs toward the heart become damaged or weakened. Blood flows backward and pools in the lower leg. Increased pressure causes swelling, heaviness, and aching. Untreated, CVI can progress through stages from symptoms to varicose veins to skin changes to venous ulcers. Early identification allows for timely intervention.
Yes. Significant reflux can exist in the deeper venous system without prominent surface varicosities. The duplex evaluates the deep and superficial venous systems, identifying dysfunctional valves that may not be apparent on the surface.
No referral is required. You book directly through our website and we come to your home in Southern Maine. Results are reviewed and delivered within 24–48 hours.
A venous duplex evaluates both valve function (insufficiency/reflux) and blood flow — which means it simultaneously rules out deep vein thrombosis (DVT) while assessing valve competency. DVT causes sudden, often severe swelling and pain and requires urgent evaluation. Chronic venous insufficiency causes gradual, progressive symptoms. The same duplex study addresses both questions.
Southern Maine · Mobile Service · No Referral
A venous duplex at home maps your leg vein valve function in 30 minutes. Know exactly which valves are failing, where the reflux is worst, and what your next step is. No referral. Flat pricing. Results in 24–48 hours.
Book Your Venous DuplexVenous Duplex $397 · No Referral · Southern Maine