Varicose veins are often dismissed as a cosmetic issue—but for many people, they’re a sign of underlying venous insufficiency (when leg veins struggle to move blood back toward the heart). Left untreated, symptoms can worsen over time and may lead to complications like skin changes, bleeding, ulcers, or blood clots.
If you’re in the Greater South Houston Area and dealing with leg heaviness, swelling, itching, or bulging veins, a vein evaluation can clarify what’s going on and what treatment (if any) makes sense.
Quick answer: are untreated varicose veins dangerous?
Sometimes. Many cases start mild, but untreated varicose veins can progress, especially when symptoms are already present. The most common problems are ongoing discomfort and skin damage. Less commonly, complications like superficial clots, venous ulcers, or deep vein thrombosis (DVT) can occur.
When to call a specialist vs. when to seek urgent care
Schedule a vein evaluation soon if you have:
- Aching, heaviness, or fatigue in the legs (especially later in the day)
- Swelling around the ankles or lower legs
- Itching, dryness, or an eczema-like rash near the ankle
- Skin discoloration (brownish or darkening skin)
- Symptoms that are gradually worsening
Seek urgent medical care the same day if you notice:
- Sudden swelling in one leg
- New redness, warmth, or tenderness along a vein
- New, significant leg pain that doesn’t improve with rest
Call 911 if you have:
- Chest pain
- Shortness of breath
- Coughing up blood
These can be signs of a pulmonary embolism, which is a medical emergency.
What are varicose veins?
Varicose veins are enlarged, twisted veins that often appear blue or purple and may bulge under the skin, most commonly on the legs. They typically develop when one-way valves inside the veins weaken. Instead of blood moving efficiently upward, it can flow backward and pool, increasing pressure inside the vein.
Over time, that pressure can contribute to symptoms (pain, swelling, itching) and, in some cases, skin changes and complications.
Symptoms of varicose veins (and why they can worsen)
Some people have visible veins with minimal discomfort. Others experience symptoms that affect daily life. Common symptoms include:
- Leg heaviness or aching
- Throbbing or burning sensations
- Swelling in the ankles/lower legs
- Itching around the vein
- Night cramps or restless legs
Symptoms often feel worse after long periods of standing or sitting, and may improve with walking or leg elevation.
What can happen if varicose veins are left untreated?
1) Skin discoloration (hyperpigmentation)
What you may notice: Brownish or darker skin, often near the ankle or lower calf.
Why it matters: Ongoing pressure in the veins can cause fluid and blood cells to leak into surrounding tissue, leading to inflammation and discoloration.
How treatment helps: Treating the underlying vein reflux can reduce swelling and slow or prevent progression of skin changes.
2) Lipodermatosclerosis (hardening of the lower leg)
What you may notice: Skin that feels tight, firm, tender, or “woody,” sometimes with swelling and discomfort.
Why it matters: This can be a sign of long-standing venous disease and inflammation.
How treatment helps: Addressing reflux and improving circulation can help reduce inflammation and support healthier skin.
3) Venous leg ulcers (open sores)
What you may notice: A wound—often near the ankle—that is slow to heal or keeps coming back.
Why it matters: Venous ulcers can enlarge, become painful, and increase the risk of infection. They’re often associated with chronic venous insufficiency.
How treatment helps: A treatment plan may include wound care plus treating the underlying vein problem to improve healing and reduce recurrence.
4) Superficial thrombophlebitis (inflammation/clot in a surface vein)
What you may notice: A tender, firm, warm “cord-like” area along a vein, sometimes with redness.
Why it matters: Superficial clots are usually less dangerous than DVT, but they can be painful and should be evaluated—especially if symptoms are spreading or worsening.
How treatment helps: A clinician can confirm what’s happening and recommend appropriate care, which may include compression, medication, or in-office vein treatment depending on severity.
5) Deep vein thrombosis (DVT) and pulmonary embolism (PE)
What you may notice: DVT can cause swelling, pain, warmth, and redness—often in one leg.
Why it matters: A DVT is a clot in a deep vein. If part of the clot travels to the lungs, it can cause a pulmonary embolism, which is life-threatening.
Important note: Not everyone with varicose veins develops DVT. But new, sudden one-leg swelling or pain should be evaluated promptly.
6) Bleeding from a varicose vein
What you may notice: Sudden bleeding after a minor bump or scratch, especially if the vein is close to the skin.
Why it matters: Varicose veins can be under pressure. Bleeding can be significant and may require urgent care.
How treatment helps: Minimally invasive vein procedures can close off problematic veins and reduce the risk of future bleeding episodes.
How a vein specialist evaluates varicose veins
A thorough evaluation typically includes:
- A review of symptoms and health history
- A focused leg exam
- A duplex ultrasound to check blood flow and identify reflux (backward flow)
This helps determine whether symptoms are coming from vein reflux and which treatment options fit your situation.
Treatment options for varicose veins
Treatment depends on symptoms, ultrasound findings, and your goals (comfort, health, appearance). Options may include:
- Conservative care: Walking, leg elevation, weight management, and compression stockings to help reduce heaviness and swelling
- Sclerotherapy: Often used for smaller varicose veins and spider veins
- Ultrasound-guided sclerotherapy: For veins that need imaging guidance
- Microphlebectomy: Removal of bulging surface veins through tiny incisions
- Ablation procedures (when appropriate): Minimally invasive techniques that close refluxing veins
A specialist can explain which veins are causing symptoms and what approach is most effective.
Why choose Coastal Vascular Center (Greater South Houston Area)
If you’re dealing with varicose veins, you deserve answers—not guesswork. At Coastal Vascular Center, our team focuses on identifying the cause of your symptoms and recommending treatment options that fit your needs.
Next step: Schedule a vein evaluation to discuss your symptoms and determine whether minimally invasive treatment could help you feel better and reduce the risk of complications.
FAQs
Not always, but they often progress over time, especially when symptoms (swelling, aching, skin changes) are already present.
Compression can help manage symptoms and swelling, but it typically doesn’t eliminate the underlying refluxing vein.
A vein close to the skin can bleed after minor trauma. If bleeding is heavy or won’t stop, seek urgent care.
Many patients start with a vascular specialist or a dedicated vein specialist who can perform an ultrasound evaluation and offer minimally invasive treatments.
New, sudden one-leg swelling, warmth, redness, or significant pain should be evaluated promptly to rule out DVT.
