Vein Treatment Guide: Comparing EVLT, RFA, VenaSeal™ , and More

Understanding the Types of Vein Problems

Before comparing treatments, it helps to know what they treat.

Spider veins are small, thin veins near the skin’s surface. They are usually red, blue, or purple. They often show up on the legs and face.

Varicose veins are larger, swollen veins. They often twist and bulge under the skin, usually on the legs. They can cause aching, heaviness, or swelling.

Chronic venous insufficiency (CVI), also called venous reflux, is the condition behind many vein problems. It happens when vein valves weaken and blood pools in the legs instead of flowing back to the heart. CVI is often the root cause of both spider and varicose veins. That is why treatment plans usually start with a duplex ultrasound, not just a look at the visible veins.

How Vein Specialists Choose a Treatment

A vein specialist looks at several factors before recommending a treatment:

• Vein size and location – Larger, deeper veins with reflux usually respond best to heat-based or adhesive closure methods. Smaller surface veins are often treated with sclerotherapy.
• Duplex ultrasound results – This painless imaging test shows how blood moves through your veins. It helps identify which ones are not working correctly.
• Symptom severity – Pain, swelling, and skin changes can shift the treatment priority away from a purely cosmetic approach.
• Health history and lifestyle – Some procedures may not fit every patient. Recovery time can also matter if you have an active schedule.

Find a Location Near You

Treatment Options for Varicose Veins

Varicose veins linked to venous reflux are usually treated with a closure method. This seals the diseased vein so blood reroutes through healthier veins nearby.

Endovenous Laser Ablation (EVLT)

A thin laser fiber is guided into the diseased vein using ultrasound. Laser energy heats the vein wall until it closes. EVLT is one of the most established treatments for larger varicose veins. It is usually done with local anesthesia. Recovery typically involves minimal downtime, though some bruising or soreness is possible.

Radiofrequency Ablation (RFA)

RFA works much like EVLT. Instead of laser energy, it uses radiofrequency energy to heat and close the vein. A thin catheter delivers the energy under ultrasound guidance. Most patients return to light activity within a day or two.

VenaSeal™

VenaSeal™ uses a medical adhesive instead of heat to close the vein. Because there is no thermal energy involved, some patients may skip the numbing injections used with laser or radiofrequency methods. Compression stockings are often not needed afterward.

Varithena

Varithena is a prescription foam injected into the diseased vein. It displaces blood and causes the vein walls to collapse. This option is often used for veins with an irregular or winding shape, which can be harder to treat with a straight catheter.

ClariVein®

ClariVein® combines a rotating catheter tip with a sclerosant solution. It uses both mechanical and chemical action to close the vein. Because it does not rely on heat, it may reduce the need for extensive local anesthesia.

Treatment Options for Spider Veins

Spider veins sit closer to the skin’s surface than varicose veins. They are usually treated differently.

Ultrasound-Guided Sclerotherapy

Ultrasound-guided sclerotherapy treats smaller varicose veins and deeper vessels that are hard to see. A specialist uses ultrasound to guide the needle to the target vein, then injects a sclerosant solution.

Visual Sclerotherapy

For spider veins visible at the surface, visual sclerotherapy uses direct sight instead of ultrasound to guide the injection. The sclerosant irritates the vein wall, causing it to collapse. The vein fades over time as the body reabsorbs it.

Both forms of sclerotherapy are minimally invasive. Neither requires incisions, and downtime is typically minimal. Some patients need more than one session, depending on how many veins are treated.

Find a Location Near You

What to Expect During and After Vein Treatment

Most vein treatments at USA Vein Clinics follow a similar path:

• Evaluation first – A duplex ultrasound shows which veins are affected and confirms whether reflux is present, before any treatment is recommended.
• In-office procedure – Most treatments take less than an hour. They are outpatient procedures, usually done with local anesthesia.
• Same-day activity – Many patients return to light daily activity shortly after treatment. Your specialist will give you guidance specific to your procedure.
• Follow-up care – Ongoing monitoring helps track healing and catch new vein activity early. Treating existing veins does not prevent new ones from forming over time.

Insurance often covers treatment when it is medically necessary, such as when symptoms like pain, swelling, or skin changes are present. Cosmetic-only spider vein treatment may not be covered. It is worth asking about coverage during your consultation.