Spider Veins

What Are Spider Veins?

Spider veins (telangiectasias) are tiny, thin veins visible just beneath the skin’s surface. They appear as red, blue, or purple web-like patterns — often described as looking like spider webs or tree branches — and most commonly develop on the legs and face. While spider veins are generally considered a cosmetic concern, they can also cause discomfort and may indicate underlying venous insufficiency that warrants evaluation.

Spider veins form when small blood vessels near the skin’s surface become dilated and visible. These veins become non-functional “dead-end” veins where blood pools instead of flowing efficiently back to the heart. Although they are a milder form of vein disease than varicose veins, the underlying mechanism is similar — malfunctioning valves allow blood to flow backward and accumulate, stretching the tiny vessels until they become visible.

Spider Vein Symptoms

Many people with spider veins experience no symptoms beyond their visible appearance. However, the deeper veins that often accompany spider veins can cause noticeable discomfort. Many vein disease sufferers have a combination of both varicose and spider veins, and symptoms can arise from either type.

Common symptoms include:

• Visible red, blue, or purple web-like veins, most often on the legs, ankles, or face
• Aching or heaviness in the legs, especially after prolonged standing
• Burning or throbbing sensations near affected veins
• Itching around the veins
• Leg fatigue that worsens throughout the day
• Mild swelling in the lower legs or ankles
• Restless legs, particularly at night
• Cramping in the calves

Symptoms are often worse after long periods of standing or sitting, at the end of the day, and during warmer weather when veins naturally dilate.

What Causes Spider Veins?

The Role of Genetics

There are many myths about what causes spider veins. While pregnancy can aggravate the condition, it does not cause it. Over 80% of spider vein cases have a genetic component [1] — if you have spider veins, it is likely that someone else in your family does too. Spider veins are not caused by crossing your legs or by standing for long periods, though these activities can worsen existing vein disease.

Contributing Factors

Several factors contribute to spider vein development or can make them worse:

• Heredity — the most significant factor in developing spider veins
• Hormonal changes — puberty, pregnancy, and menopause affect vein walls and valves
• Prolonged standing or sitting — reduces the efficiency of the calf muscle pump
• Obesity — increases pressure on leg veins
• Sun exposure — can cause spider veins on the face, especially in fair-skinned individuals
• Age — vein walls and valves weaken over time
• Hormonal medications — birth control pills and hormone replacement therapy can affect vein elasticity
• Previous vein injuries or blood clots — damaged veins are more prone to developing spider veins
• Sedentary lifestyle — lack of regular movement reduces circulation

Spider Veins vs. Varicose Veins

While both conditions involve malfunctioning vein valves, there are important differences:

Having spider veins can indicate underlying venous insufficiency, so evaluation by a vascular specialist is recommended — especially if you also experience leg symptoms.

Diagnosis

Diagnosing spider veins typically begins with a visual examination. Our vascular specialists will:

• Conduct a physical exam to assess the extent and pattern of visible veins
• Review your symptoms and ask about leg discomfort, swelling, and activity limitations
• Evaluate your medical and family history for risk factors
• Perform a duplex ultrasound if underlying venous insufficiency is suspected. This painless, non-invasive test evaluates blood flow in the deeper veins and can identify valve dysfunction that may be contributing to spider vein formation.

Identifying and treating any underlying venous insufficiency is important because treating only the visible spider veins without addressing the root cause can lead to recurrence.

Treatment Options

Lifestyle Changes

For mild cases, conservative measures can help manage symptoms and slow progression:

• Compression stockings — specially designed to apply graduated pressure on the legs, supporting vein function and reducing discomfort. While they provide symptomatic relief, they do not correct the underlying problem.
• Leg elevation — raising your legs above heart level for 15-20 minutes several times daily encourages blood flow back to the heart.
• Regular exercise — walking, swimming, and cycling strengthen calf muscles and improve circulation.
• Avoid prolonged standing or sitting — take breaks to move and stretch throughout the day.
• Maintain a healthy weight — reduces pressure on leg veins.
• Sun protection — wear sunscreen to prevent spider veins on the face.

Sclerotherapy

Sclerotherapy is the most common and effective treatment for spider veins. During this outpatient procedure:

• A sclerosing solution is injected directly into the affected veins using very fine needles
• The solution irritates the vein lining, causing the vein to collapse and seal shut
• Blood is naturally rerouted to nearby healthy veins
• Over time, the treated vein is absorbed by the body and fades from view
• A typical session lasts 15-20 minutes and involves multiple microinjections
• Most patients require 2-4 treatment sessions for optimal results

Because spider veins are close to the skin’s surface, ultrasound guidance is usually not necessary. The procedure requires no anesthesia, and patients can typically return to normal activities immediately.

Additional Treatment Options

For certain cases, additional or alternative treatments may be recommended:

• Ambulatory Phlebectomy — for larger spider veins or small varicose veins, tiny incisions allow removal of the affected vein with minimal scarring
• Vein Ablation — if underlying venous insufficiency is identified, radiofrequency or laser ablation of the deeper source vein may be needed before treating surface spider veins

Results and Recovery

After sclerotherapy treatment:

• Treated veins typically begin to fade within 3-6 weeks
• Full results may take 2-3 months to become apparent
• Compression stockings are usually worn for a short period after treatment
• Normal activities can be resumed immediately; strenuous exercise should be avoided for a few days
• New spider veins may develop over time, but maintenance treatments can address them

Why Choose Preferred Vascular Group?

Our vascular specialists treat spider veins as both a cosmetic and a medical concern. At Preferred Vascular Group, you receive:

• Thorough evaluation to identify any underlying venous insufficiency before treatment
• Experienced specialists skilled in sclerotherapy and other vein treatments
• Personalized treatment plans designed for optimal cosmetic and functional results
• Comfortable, office-based procedures with minimal downtime
• Eight convenient locations across Georgia and Ohio

If spider veins are affecting your confidence or comfort, our specialists can help. Schedule a consultation to discuss your treatment options and take the first step toward clearer, healthier-looking legs.

References

1. Spider Veins. StatPearls, StatPearls Publishing, 2024. PubMed
2. Kern P, et al. “Sclerotherapy of telangiectasias or spider veins in the lower limb: A review.” Journal of Cosmetic and Laser Therapy, 2016. PubMed
3. Rabe E, et al. “Treatment for telangiectasias and reticular veins.” Cochrane Database of Systematic Reviews, 2011. PubMed