What are the main causes of varicose veins and spider veins?

Varicose veins and spider veins develop when valves in the veins become weakened or damaged, causing blood to pool. Common causes include genetics (family history), aging, pregnancy, prolonged standing or sitting, obesity, and hormonal changes. Women are more susceptible due to hormonal fluctuations during pregnancy, menopause, or from birth control use.

How do I know if I need treatment for my varicose veins?

You should consider treatment if you experience symptoms such as leg pain, aching, heaviness, swelling, cramping, restless legs, skin discoloration, or itching around the veins. Even without symptoms, large or bulging varicose veins may benefit from treatment to prevent complications. A consultation with Dr. Figueroa at VeinCentre can determine if treatment is right for you.

What is sclerotherapy and how does it work?

Sclerotherapy is a minimally invasive treatment where a specialized solution is injected directly into spider veins or small varicose veins. This solution irritates the vein walls, causing them to collapse and seal shut. Blood is then rerouted through healthier veins, and the treated vein is gradually absorbed by the body over several weeks. It's highly effective with a 90%+ success rate.

Are varicose vein treatments covered by OHIP?

Yes, consultations at VeinCentre are OHIP-covered. Treatment coverage depends on medical necessity. If your varicose veins cause symptoms like pain, swelling, or skin changes, treatments like radiofrequency ablation or VenaSeal may be covered by OHIP. Cosmetic treatments for spider veins are typically not covered. Dr. Figueroa will assess your condition and discuss coverage options during your consultation.

How long does a typical vein treatment appointment take?

Treatment duration varies by procedure type. Sclerotherapy typically takes 30-45 minutes, VenaSeal Glue Ablation takes 30-45 minutes, and Radiofrequency Ablation (RFA) takes 45-60 minutes. These are outpatient procedures performed in our Toronto or Richmond Hill clinics, allowing you to return home the same day.

Is vein treatment painful?

Modern vein treatments are minimally invasive and well-tolerated. Local anesthesia is used to numb the treatment area, so you'll feel minimal discomfort during the procedure. Most patients describe feeling only slight pressure or mild sensations. Sclerotherapy involves small needle injections that feel like tiny pinches. Post-treatment discomfort is typically mild and manageable with over-the-counter pain relief.

What is the recovery time after vein treatment?

Recovery is quick with modern vein treatments. Sclerotherapy and VenaSeal allow immediate return to normal activities with no compression stockings required after VenaSeal. Radiofrequency Ablation typically requires 1-2 days before returning to work and wearing compression stockings for 1-2 weeks. Walking is encouraged immediately after all procedures to promote healing. Most patients resume regular activities within days.

Can varicose veins come back after treatment?

Treated veins do not reopen once successfully closed. However, new varicose veins can develop in other areas over time due to ongoing genetic factors, aging, or lifestyle conditions. The recurrence rate is low with modern treatments—RFA and VenaSeal have 95%+ success rates. Maintaining a healthy weight, staying active, and wearing compression stockings when needed can help prevent new vein problems.

How many treatment sessions will I need?

The number of sessions depends on the severity and extent of your vein condition. Many patients see significant improvement after just one treatment session. Spider veins may require 2-3 sclerotherapy sessions spaced several weeks apart for optimal results. Larger varicose veins treated with RFA or VenaSeal typically require only one session per vein. Dr. Figueroa will create a personalized treatment plan during your consultation.

What should I expect during my first consultation?

During your OHIP-covered consultation at VeinCentre, Dr. Figueroa will review your medical history, examine your legs, and may perform an ultrasound to assess vein health and blood flow. You'll discuss your symptoms, treatment goals, and concerns. Dr. Figueroa will explain which treatment options are best suited for your condition—whether sclerotherapy, radiofrequency ablation, or VenaSeal—and answer all your questions about the procedure, recovery, and expected results.

Spider Veins: Causes, Symptoms, Treatment Options, and Prevention Guide

Aug 4
6 min read

Spider veins (telangiectasias) are small, dilated blood vessels visible just beneath the surface of the skin. Appearing most commonly on the legs, ankles, and face, these fine web-like networks of red, blue, or purple lines affect millions of adults. While often considered a cosmetic concern, spider veins can sometimes cause physical discomfort or signal underlying circulatory changes. At VeinCentre, with modern clinic locations in Richmond Hill and North York, patients receive compassionate, medically sound guidance and advanced care to restore smooth skin and healthy legs.

Key Takeaways

Spider veins are small, dilated blood vessels (under 1- 2 mm) visible near the skin's surface, most common on the legs, ankles, and face.
Weakened vein valves allow blood to pool in tiny capillaries, causing them to stretch and become visible; hormones, genetics, prolonged standing, and sun exposure are leading risk factors.
While often a cosmetic concern, spider veins can cause burning, itching, throbbing, or leg fatigue in some patients.
Sclerotherapy is the clinical gold standard for leg spider veins, while laser and light therapy are often preferred for fine facial vessels.
VeinCentre's specialized nurse injectors perform these procedures under the clinical oversight of vascular surgeon Dr. Luis Figueroa at the Richmond Hill and North York locations.
Daily habits like compression stockings, leg elevation, and staying active help manage circulation, though genetic spider veins cannot always be fully prevented.

What Are Spider Veins?

Spider veins are thin, damaged micro-vessels that branch out in patterns resembling spider webs or tree branches. Unlike larger, bulging varicose veins, spider veins lie flat or slightly raised against the skin's surface and typically measure less than 1 to 2 millimetres in diameter.

While spider veins themselves are generally harmless, they share similar risk factors with deeper venous disease. Understanding why they form helps patients make informed decisions about their leg health and treatment options.

Spider Veins vs. Varicose Veins: Key Differences

Though they share underlying causes, spider veins and varicose veins differ in size, appearance, and clinical significance. The comparison below outlines how each condition typically presents.

Feature	Spider Veins	Varicose Veins
Size	Under 1-2 mm in diameter	Often 3 mm or larger, sometimes bulging
Appearance	Flat or slightly raised, thin web-like or branch-like patterns	Twisted, rope-like, and raised above the skin
Color	Red, blue, or purple	Blue or dark purple
Common Locations	Legs, ankles, face	Legs, particularly calves and thighs
Typical Symptoms	Usually cosmetic; occasional mild burning or itching	Aching, heaviness, swelling, and cramping are more common
Underlying Cause	Weakened capillaries and micro-vessels	Faulty valves in larger, deeper veins
Common Treatment	Sclerotherapy, laser and light therapy	Sclerotherapy, endovenous ablation, or surgical evaluation

What Causes Spider Veins?

The primary driver behind spider veins is microvascular pressure. Veins contain one-way valves designed to pump blood upward toward the heart against gravity. When these tiny valves weaken, blood can pool backward into tiny capillaries, causing them to stretch, enlarge, and become visible through the skin.

This process, known clinically as venous reflux, begins at a microscopic level long before any vessel becomes visible. As pressure builds within the capillary bed, the vessel walls lose elasticity and dilate permanently, producing the fine red, blue, or purple lines characteristic of spider veins. Because this pressure is influenced by posture, hormones, and vessel wall strength, spider veins frequently develop gradually over years rather than appearing suddenly, which is why early evaluation can help patients understand whether their veins are purely cosmetic or an early sign of broader venous insufficiency.

Common risk factors include:

Hormonal Fluctuations: Estrogen shifts during pregnancy, menopause, or the use of oral contraceptives weaken vessel walls.
Genetics: A family history of spider or varicose veins is one of the strongest predictors.
Prolonged Standing or Sitting: Occupations that require standing or sitting for long hours increase venous pressure in the lower legs.
Sun Exposure & Aging: Ultraviolet rays can break down delicate collagen and elastic fibres, particularly on the face, while aging naturally thins skin tissue.

Symptoms Beyond the Surface

For many individuals, spider veins are purely an aesthetic concern, causing no physical discomfort beyond their visible appearance on the skin. However, a subset of patients does experience mild physical symptoms that extend beyond cosmetics, particularly when spider veins are widespread or clustered around the ankles and calves, including:

Localized burning, itching, or tingling sensations.
Throbbing or aching in the lower legs after prolonged standing.
Heavy or fatigued legs toward the end of the day.

How Spider Veins Are Diagnosed

Before recommending treatment, VeinCentre clinicians conduct a thorough visual and clinical assessment of the affected area. In most cases, spider veins can be diagnosed through direct examination alone, as their characteristic web-like pattern and shallow depth distinguish them from larger venous conditions.

When symptoms suggest a deeper issue, such as persistent aching, swelling, or a family history of venous disease, duplex ultrasound may be used to evaluate blood flow in the larger veins beneath the skin. This non-invasive imaging helps confirm whether visible spider veins are an isolated cosmetic finding or a marker of underlying chronic venous insufficiency requiring broader management. Identifying the correct cause ensures that treatment addresses the source of the problem rather than the surface presentation alone.

Effective Spider Vein Treatments at VeinCentre

At VeinCentre, we offer precise, minimally invasive treatments designed to fade visible vessels safely and efficiently:

1. Sclerotherapy

Sclerotherapy remains the clinical gold standard for treating leg spider veins. During this quick, virtually painless procedure, a specialized mild solution is injected directly into the spider veins using a micro-needle. The solution irritates the vessel lining, causing the vein to collapse and close. Over the following weeks, the body naturally reabsorbs the closed vessel, rerouting blood into healthy nearby veins.

Expert Provider Care at VeinCentre: At our Richmond Hill and North York clinics, sclerotherapy injections are expertly performed by specialized nurse injectors with extensive training in cosmetic venous procedures. Vascular surgeon Dr. Luis Figueroa oversees overall clinical operations and evaluates patients requiring deeper venous assessments.

2. Laser & Light Therapy

For fine facial spider veins or delicate vessel networks where injections may not be suitable, targeted laser therapy applies precise light energy to heat and dissolve the micro-vessels without damaging surrounding skin tissue. The laser's wavelength is selectively absorbed by the hemoglobin within the affected vessel, causing it to coagulate and gradually fade from view over the following weeks. Because this approach requires no needles, it is especially well suited to smaller, superficial vessels around the nose, cheeks, and chin, where precision and minimal downtime are priorities. Most patients require a short series of sessions for optimal fading, and results continue to improve gradually as the body clears the treated vessels.

Daily Tips for Prevention & Leg Health

While you cannot completely prevent genetic spider veins, these daily habits promote healthy leg circulation and may slow the formation of new vessels over time:

Wear Compression Stockings: Graduated compression wear supports venous return during long workdays.
Elevate Your Legs: Prop your feet above heart level for 15 minutes daily to relieve pooling pressure.
Stay Active: Low-impact activities like walking, swimming, or cycling engage the calf muscle pump.
Avoid Tight Clothing: Restrictive waistbands or tight leg bands can impede venous return.

Book Your Consultation at VeinCentre (Richmond Hill & North York)

If spider veins are affecting your confidence or causing leg fatigue, expert care is nearby. Contact VeinCentre today to schedule an evaluation at our Richmond Hill or North York location and learn how our specialized nurse injectors can help you achieve clearer, healthier legs.

Frequently Asked Questions

Are spider veins dangerous?

Spider veins are usually harmless and considered a cosmetic concern. However, they can occasionally signal underlying venous insufficiency, so patients with associated aching, swelling, or heaviness should have their veins evaluated by a clinician at VeinCentre.

How many sclerotherapy sessions are needed to clear spider veins?

Most patients see noticeable fading after a minimum of two sclerotherapy sessions, with additional sessions as needed based on vessel characteristics.

Does sclerotherapy hurt?

Sclerotherapy is virtually painless for most patients. A fine micro-needle is used to inject the solution, and any discomfort is typically limited to a brief, mild stinging sensation at the injection site.

Can spider veins come back after treatment?

Treated vessels do not return once they collapse and are reabsorbed by the body, but new spider veins can develop over time due to ongoing risk factors like genetics, hormonal changes, or prolonged standing.

Is laser therapy or sclerotherapy better for spider veins?

The right choice depends on where the vessels sit and how large they are. Leg veins typically respond best to sclerotherapy because the injected solution reaches the vessel directly and collapses it reliably, even in slightly deeper capillary beds. Facial vessels are usually thinner, sit closer to the skin's surface, and run near sensitive areas like the nose and eyes, making needle-free laser energy the safer, more precise option. Some patients with very fine leg vessels that are difficult to cannulate may also be better candidates for laser treatment. A VeinCentre clinician can determine the best fit during an in-person evaluation of vessel size, depth, and location.