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Understanding Varicose Veins: A Comprehensive Guide

  • Ontario Vascular
  • Jul 22, 2025
  • 11 min read

Updated: Dec 10, 2025

Varicose veins affect nearly one-third of adults by age 50, making them a widespread vascular concern. They can cause significant discomfort, persistent swelling, and considerable cosmetic concerns in the legs, impacting quality of life. This comprehensive guide explains what varicose veins are, how they form, and why timely and effective treatment is paramount.


Readers will learn to recognize the subtle and overt symptoms, understand the complex underlying causes, and explore a range of effective treatment options—from minimally invasive sclerotherapy to advanced endovenous laser therapy. Additionally, we will cover practical prevention strategies, provide cost estimates for treatments in Toronto, and outline the care options available through qualified vascular professionals.


varicose veins

What Are Varicose Veins and How Do They Develop?

Varicose veins are more than just enlarged, twisted superficial veins; they represent a failure in the intricate one-way valve system within our venous network. They occur when these delicate vein valves weaken or become damaged, failing to close properly. This malfunction allows blood, which should be flowing upwards towards the heart, to pool and flow backward (a phenomenon known as reflux), causing the veins to distend and bulge into visible cords under the skin. This increased pressure within the veins leads to their dilation and the characteristic rope-like patterns often seen on the legs.


The venous system in the legs consists of superficial veins (closer to the skin surface) and deep veins (located within muscle tissue). Varicose veins primarily affect the superficial system, particularly the great saphenous vein and small saphenous vein.


Prolonged standing or sitting, for instance, can exacerbate valve fatigue and increase hydrostatic pressure, making existing varicosities appear or worsen over time. Over time, this sustained pressure can lead to chronic venous insufficiency, a progressive condition where dilated, tortuous veins (often over 3 mm in diameter) are caused by persistent valve failure in the superficial leg veins. The one-way leaflets inside the veins no longer close properly, allowing blood to reflux and causing the veins to distend, leading to a cascade of symptoms and potential complications.


Common Symptoms and Signs

Recognizing the symptoms of varicose veins is crucial for early intervention and preventing progression. While some individuals may experience only cosmetic concerns, many suffer from a range of uncomfortable and debilitating symptoms that can significantly impact daily life. Common symptoms include:

  • Aching, throbbing, or burning sensations, often worse after prolonged standing or at the end of the day.

  • Heaviness or tiredness in the legs, particularly after activity or long periods of immobility.

  • Swelling around the ankles and lower legs, which may fluctuate throughout the day.

  • Visible bulging or rope-like veins, which can be tender to the touch.

  • Intermittent cramps, especially at night, often described as "restless legs."

  • Skin dryness, discoloration (often brownish pigmentation), or persistent itching around the affected veins.


Beyond these common complaints, persistent venous pressure may also lead to more severe skin changes, such as eczema (venous dermatitis) or hardening of the skin (lipodermatosclerosis). In advanced cases, this can progress to the formation of open sores (venous ulcers), which are notoriously slow to heal and significantly increase the risk of infection, requiring specialized wound care.


Who Is at Risk and Why?

Varicose veins may develop due to a complex interplay of several factors, some inherited and others related to lifestyle and life stages:

  • Family history: A strong genetic predisposition exists. If close family members have varicose veins, you are significantly more likely to develop them, suggesting inherited vein structure or valve weakness.

  • Lifestyle: Occupations requiring prolonged standing or sitting (e.g., nurses, teachers, office workers) increase pressure in leg veins. Obesity places additional strain on the circulatory system, increasing venous pressure. Smoking damages blood vessel walls and impairs circulation, while low physical activity weakens calf muscles, which are vital for pumping blood back to the heart.

  • Hormonal influences: Hormonal fluctuations, particularly those involving estrogen and progesterone, can relax vein walls, making them more susceptible to dilation. This is why pregnancy, menopause, and hormone therapy are significant risk factors. During pregnancy, increased blood volume and pressure from the growing uterus further contribute to vein distension.

  • Age: The natural wear and tear on vein valves and the loss of elasticity in vein walls occur over time, making older individuals more prone to varicose veins.

  • Injury or clot history: Previous trauma to the leg or a history of deep vein thrombosis (DVT) can damage vein valves, leading to a condition known as post-thrombotic syndrome, which often manifests as varicose veins and chronic swelling.


Common Types of Varicose Veins

Type

Location

Appearance

Great saphenous trunk

Inner thigh/calf

Long, rope-like cord, often quite prominent

Small saphenous trunk

Back of calf

Bulge behind the lower leg, sometimes extending to the ankle

Perforator veins

Connecting veins

Nodular clusters, often at specific points along the leg

Reticular veins

Under the skin surface

Blue-green flat networks, larger than spider veins but not bulging

Spider veins (Telangiectasias)

Very superficial skin

Fine red or blue lines, web-like patterns, purely cosmetic

Diagnosis of Varicose Veins

Accurate diagnosis is the first critical step in managing varicose veins. A thorough evaluation by a vascular specialist typically involves a combination of physical examination and advanced imaging:


  • Physical Examination: The specialist will visually inspect your legs while you are standing to identify visible varicose veins, swelling, skin changes, and any areas of tenderness. They will also palpate the veins to assess their size and consistency.

  • Duplex Ultrasound: This is the gold standard for diagnosing varicose veins and chronic venous insufficiency. A non-invasive procedure, it uses sound waves to create images of blood flow and vein structure. The ultrasound allows the specialist to visualize the deep and superficial venous systems, assess the competence of vein valves, measure blood flow direction and velocity, and identify any reflux (backward flow of blood). It can also detect blood clots, if present. This detailed mapping is essential for planning the most effective treatment strategy.

  • Other Imaging: In rare or complex cases, other imaging techniques like venography (an X-ray with contrast dye) or MRI may be used, but duplex ultrasound is usually sufficient for most diagnoses.


The diagnostic process helps determine the extent of the disease, identify the source of reflux, and rule out other conditions that might mimic varicose vein symptoms.


Latest Posts on Varicose Vein Treatment & Vascular Health in Toronto

Modern varicose vein treatments have evolved significantly, offering minimally invasive options with excellent outcomes and shorter recovery times. The choice of treatment depends on the size, location, and severity of the varicose veins, as well as the patient's overall health and preferences.


Common treatment types include:

  • Sclerotherapy: A specialized solution (sclerosant) is injected directly into small-to-medium veins, causing them to scar and close. The vein then fades over time.

  • Endovenous Laser Therapy (EVLT): A thin laser fiber is inserted into the diseased vein, and laser energy is used to heat and seal the vein from within, causing it to collapse and eventually disappear.

  • Radiofrequency Ablation (RFA): Similar to EVLT, RFA uses radiofrequency heat delivered via a catheter to close diseased veins, offering a precise and effective method for larger veins.

  • Microphlebectomy: This procedure involves removing bulging surface veins through tiny, strategically placed incisions, often performed in conjunction with ablation techniques.

  • Compression stockings: While not a cure, these medical-grade garments provide external support to leg veins, improving blood flow, reducing swelling, and alleviating symptoms. They are often used as a conservative management strategy or post-procedure.


A licensed healthcare provider, specifically a vascular surgeon or phlebologist, will help determine which option or combination of options is most appropriate based on your specific vein condition and diagnostic findings.

Treatment

Type

Recovery

Best For

Mechanism

Sclerotherapy

Injection

Same day

Small-to-medium veins, spider veins

Chemical irritation and closure of the vein

EVLT

Laser ablation

1–2 days

Trunk/branch varicosities, larger veins

Heat energy seals the vein from within

RFA

Heat ablation

1–2 days

Long vein segments, saphenous veins

Radiofrequency energy seals the vein

Microphlebectomy

Minor surgery

1 week

Surface bulging veins, residual varicosities

Physical removal of vein segments

Vein stripping

Surgical removal

2–4 weeks

Extensive vein disease (less common now)

Surgical extraction of the diseased vein

Compression stockings

Conservative

Ongoing

Symptom relief, prevention, post-treatment

External pressure supports venous return

Preparing for Varicose Vein Treatment

Once a treatment plan is established, proper preparation can significantly contribute to a smooth procedure and optimal outcome.


Your vascular specialist will provide specific instructions, but general guidelines often include:

  • Initial Consultation and Discussion: Ensure you understand the chosen procedure, its benefits, risks, and expected recovery. Ask any questions you may have about the process.

  • Medication Review: Inform your doctor about all medications, supplements, and herbal remedies you are taking. You may be advised to stop certain medications, such as blood thinners or anti-inflammatory drugs, a few days before the procedure to minimize bruising or bleeding risk.

  • Fasting Instructions: For some procedures, you may need to fast for a certain period before treatment.

  • Comfortable Clothing: Wear loose, comfortable clothing on the day of your procedure. You will likely need to wear compression stockings immediately afterward, so bring them with you if provided separately.

  • Arranging Transportation: While many procedures are minimally invasive, it's often recommended to have someone drive you home, especially if sedation is used.

  • Hydration: Staying well-hydrated in the days leading up to your appointment can be beneficial.


Following these pre-procedure guidelines helps ensure your safety and prepares your body for the treatment.


Post-Treatment Care and Recovery

Recovery from modern varicose vein treatments is generally quick, allowing most individuals to return to their normal routines swiftly.


However, adhering to post-treatment instructions is vital for successful healing and long-term results:

  • Compression Therapy: You will typically be required to wear compression stockings for a specified period (days to weeks) after the procedure. These help reduce swelling, minimize bruising, and support the treated veins as they heal.

  • Walking and Activity: Light walking is usually encouraged immediately after treatment to promote blood circulation and prevent blood clots. However, strenuous activities, heavy lifting, and prolonged standing or sitting should be avoided for a period recommended by your doctor.

  • Managing Discomfort: Mild pain, bruising, and tenderness are common. Over-the-counter pain relievers can help manage discomfort. Applying cold compresses may also reduce swelling and bruising.

  • Avoid Hot Baths and Saunas: For a few weeks, avoid hot baths, saunas, and hot tubs, as excessive heat can dilate veins and potentially interfere with the healing process. Showers are generally fine.

  • Follow-up Appointments: Regular follow-up appointments are crucial to monitor your recovery, assess the success of the treatment, and address any concerns. Ultrasound may be used to confirm vein closure.

  • Expected Outcomes and Side Effects: While treatments are highly effective, some temporary side effects like skin discoloration, numbness, or a feeling of tightness along the treated vein are possible. These usually resolve over time.


By diligently following your specialist's post-care instructions, you can optimize your recovery and achieve the best possible outcome for your vein health.


Prevention and Long-Term Management

Preventing the development or recurrence of varicose veins is essential for maintaining healthy legs and overall well-being.


While genetics play a role, lifestyle modifications can significantly reduce your risk:

  • Maintain an active lifestyle: Regular exercise, especially activities that engage the calf muscles (like walking, cycling, or swimming), acts as a natural pump, aiding blood flow back to the heart.

  • Avoid long periods of sitting or standing: If your job requires prolonged immobility, take frequent breaks to walk around, stretch, or shift your weight.

  • Elevate legs regularly: Elevating your legs above heart level for 15-30 minutes several times a day can help reduce venous pressure and swelling.

  • Wear compression garments if recommended: Medical-grade compression stockings can provide external support to your veins, improving circulation and preventing blood pooling, especially during long flights or periods of standing.

  • Follow a balanced diet and maintain a healthy weight: A diet rich in fibre helps prevent constipation, which can increase abdominal pressure and impede venous return. Maintaining a healthy weight reduces overall pressure on your leg veins. Incorporate anti-inflammatory foods and ensure adequate hydration.


During pregnancy or travel, compression and regular movement are particularly important strategies to help support circulation and minimize vein-related issues.


Potential Complications if Left Untreated

Untreated varicose veins are not merely a cosmetic issue; they can lead to a range of serious and potentially debilitating complications that impact health and quality of life, underscoring the importance of timely intervention:

  • Chronic swelling (Edema): Persistent pooling of blood in the lower legs can lead to chronic fluid retention, causing discomfort, heaviness, and difficulty with mobility.

  • Skin fibrosis or pigmentation (Stasis Dermatitis): Long-term venous congestion can cause inflammation and leakage of blood components into the surrounding tissues. This results in the skin becoming discoloured (often brownish), thickened, itchy, and sometimes leathery (lipodermatosclerosis).

  • Blood clots (Thrombophlebitis): Varicose veins are prone to inflammation and clotting. Superficial thrombophlebitis involves a clot in a superficial vein, causing pain, redness, and tenderness. More seriously, deep vein thrombosis (DVT) can occur, where a clot forms in a deep vein, posing a risk of pulmonary embolism if the clot travels to the lungs.

  • Venous ulcers or spontaneous bleeding: The chronic high pressure in untreated varicose veins can lead to fragile skin that breaks down easily, forming painful, slow-healing open sores (venous ulcers), typically around the ankles. In severe cases, the thinned skin over a bulging vein can rupture, leading to significant spontaneous bleeding that requires immediate medical attention.


Timely consultation with a qualified vascular provider can help diagnose the condition early, mitigate symptoms, and significantly reduce these risks, preserving your long-term leg health.


Costs and Consultation in Ontario

Understanding the financial aspects of varicose vein treatment is an important part of the decision-making process. In Ontario, residents may be eligible for OHIP-covered diagnostic consultations and imaging, such as duplex ultrasound, when referred by a physician for medical necessity. However, the coverage for treatment procedures themselves can vary.


Treatment costs may include:

  • Sclerotherapy: Typically ranges from CAD 300–500 per session, depending on the number and size of veins treated. Multiple sessions may be required.


  • EVLT/RFA: Generally ranges from CAD 1,000–2,500 per leg. These procedures are often considered medically necessary if symptoms are severe or complications are present, and some portions may be covered by private insurance or OHIP in specific circumstances.


It's important to note that costs can vary based on the clinic, the complexity of your condition, and whether the procedure is deemed cosmetic or medically necessary. Some clinics offer no-cost OHIP-covered assessments to determine eligibility for treatment and provide a detailed cost breakdown. It is always best to speak directly with the clinic and your insurance provider for specific cost details and coverage information tailored to your individual situation.


About Dr. Luis Figueroa

VeinCentre is a leading center dedicated to comprehensive vascular care, offering access to board-certified vascular surgeons and state-of-the-art, minimally invasive procedures for varicose vein care. Dr. Luis Figueroa, a highly respected vascular surgeon, brings over 10 years of extensive experience in diagnosing and treating a wide range of vascular conditions.


He is expertly trained in advanced techniques such as sclerotherapy, endovenous laser therapy (EVLT), radiofrequency ablation (RFA), and microphlebectomy, ensuring patients receive the most effective and personalized treatment plans. The clinic is committed to patient-centred care and also provides bilingual services to accommodate diverse patient needs, ensuring clear communication and comfort throughout the treatment journey.


Frequently Asked Questions

  • Can varicose veins return after treatment? 

    Yes, while modern treatments are highly effective, new varicose veins can develop over time, especially if underlying issues like genetic predisposition or lifestyle factors persist. Ongoing care and adherence to preventive measures help reduce recurrence.


  • Are varicose veins just cosmetic? 

    Not always. While some individuals seek treatment for cosmetic reasons, varicose veins can lead to significant medical symptoms and serious complications if left untreated, including pain, swelling, skin changes, and ulcers.


  • What are urgent symptoms that require prompt attention? 

    Sudden, severe leg pain, rapid swelling, warmth, redness, or tenderness in the leg, or spontaneous bleeding from a varicose vein, are urgent symptoms that require immediate medical evaluation to rule out conditions like deep vein thrombosis (DVT) or ruptured veins.


  • When can I resume normal activity after treatment? 

    Most people can return to light activity, such as walking, the same day or the day after treatment. Full routines, including more strenuous exercise, can typically be resumed within 1–2 weeks, depending on the procedure and individual recovery. Your doctor will provide specific guidance.


  • Is surgery always necessary for varicose veins? 

    No. With advancements in minimally invasive techniques like EVLT, RFA, and sclerotherapy, traditional surgical vein stripping is now much less common and typically reserved for very extensive or complex cases. Most patients can be effectively treated with non-surgical or minimally invasive options.


  • Can I prevent new varicose veins from forming? 

    While you cannot change genetic predispositions, you can significantly reduce your risk of developing new varicose veins or worsening existing ones by adopting a healthy lifestyle, including regular exercise, maintaining a healthy weight, avoiding prolonged standing/sitting, and wearing compression stockings when advised.


  • What's the difference between varicose veins and spider veins? 

    Varicose veins are larger, bulging, twisted veins that are often palpable and can cause significant symptoms. Spider veins (telangiectasias) are much smaller, fine red or blue lines that appear just under the skin surface, are typically flat, and are usually a cosmetic concern, though they can sometimes cause mild itching or burning.


Note: This blog is for educational purposes only and provides general information about varicose veins. It does not offer specific medical advice, diagnosis, or treatment recommendations. Please consult a licensed healthcare provider, such as a vascular surgeon or phlebologist, for personal health concerns, accurate diagnosis, and appropriate treatment options tailored to your individual condition.

 
 
 

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