Spider veins are one of the most common cosmetic vein complaints — and one of the most misunderstood. While many people assume they’re purely a cosmetic issue, spider veins can sometimes signal underlying venous disease that warrants medical evaluation. Here’s what you need to know about spider veins, what causes them, and how they’re treated at Vein Care Medical Center in Los Angeles and Walnut, CA.
What Are Spider Veins?
Spider veins — medically referred to as telangiectasia (for red vessels) or venulectasia (for blue or purple vessels) — are small, dilated blood vessels that appear near the surface of the skin. They’re called spider veins because they often radiate outward from a central point in a pattern resembling a spider web, though they can also appear as thin lines or a branching network.
They typically appear on the legs and face, particularly around the nose, cheeks, and temples. Unlike varicose veins, spider veins are generally flat and don’t bulge above the skin surface.
What Causes Spider Veins?
The exact cause of spider veins isn’t fully understood, but research consistently points to a combination of genetic predisposition and environmental triggers. The most commonly identified contributors include:
Family history: If your parents or grandparents had spider veins, your risk is significantly elevated. Genetics appear to be the single strongest predictor.
Prolonged standing or sitting: Occupations requiring extended periods in one position — nurses, teachers, office workers, flight attendants — increase venous pressure and promote spider vein development.
Hormonal changes: Estrogen is believed to weaken vein walls. Spider veins often develop or worsen during pregnancy, while taking oral contraceptives, or around menopause.
Sun exposure: Chronic UV exposure — particularly on the face — damages small blood vessels near the skin surface and promotes their dilation.
Age: Vein walls and valves naturally become less elastic over time, making spider veins more common in adults over 40.
Trauma or injury: Physical impact to the skin can rupture small vessels and leave visible marks.
Underlying venous insufficiency: In some cases, spider veins are fed by reticular veins (larger blue “feeder veins” just beneath the surface) that are themselves connected to deeper venous insufficiency. Treating spider veins without addressing the feeder veins often leads to rapid recurrence.
Are Spider Veins Dangerous?
In the majority of cases, spider veins are a benign cosmetic concern. However, they should not be dismissed entirely. Spider veins on the legs can occasionally be a visible indicator of underlying chronic venous disease — particularly when they appear in clusters around the ankle (a condition called corona phlebectatica) or are associated with leg heaviness, aching, or swelling. In these cases, a duplex ultrasound evaluation is warranted before treatment begins.
The American Academy of Dermatology notes that while spider veins rarely require medical treatment, evaluation by a vein specialist is appropriate when symptoms are present.
How Are Spider Veins Treated?
At Vein Care Medical Center, Dr. Michael D. Landau offers two primary treatment approaches for spider veins, depending on their size, location, and underlying cause.
Direct Vision Sclerotherapy: The gold standard for spider vein treatment. A fine needle is used to inject a sclerosing solution (Sotradecol® or Asclera® in foam form) directly into the targeted vessel under direct visual guidance. The sclerosant irritates and collapses the vein wall, and the treated vessel fades as the body gradually absorbs it over four to eight weeks. Injections feel similar to a small mosquito bite and require no anesthesia. Multiple veins can be treated in a single session.
Excel V™ Laser Treatment: For very fine facial spider veins and telangiectasia that are too small for needle injection, the Cutera® Excel V™ laser offers an effective needle-free alternative. High-powered green laser energy targets the hemoglobin inside the vessel, heating and collapsing it without affecting surrounding tissue. The Excel V™ works on all skin types across the Fitzpatrick classification and requires no downtime.
In cases where reticular feeder veins are identified, Dr. Landau will address these first to reduce the likelihood of spider vein recurrence.
What to Expect During and After Treatment
Sclerotherapy sessions typically last 30 to 45 minutes. Some mild redness, itching, or bruising around injection sites is normal and typically resolves within a week or two. You can return to work and most daily activities immediately after treatment, though strenuous exercise should be avoided for the first 24 to 48 hours. Compression stockings may be recommended post-treatment to support healing and optimize results.
Results are not immediate — treated veins fade gradually over four to eight weeks as the body absorbs them. Some patients achieve full clearing with a single session; others with more extensive spider veins may benefit from two or three sessions spaced several weeks apart.
Can Spider Veins Be Prevented?
Complete prevention isn’t always possible — particularly for those with a strong genetic predisposition — but certain lifestyle modifications can help slow their development:
- Wear graduated compression stockings if you stand for long periods
- Move regularly throughout the day; avoid prolonged sitting or standing
- Maintain a healthy weight
- Protect your skin from excessive UV exposure
- Elevate your legs when resting
- Exercise regularly to promote healthy circulation
If you’re bothered by spider veins on your legs or face in the Los Angeles or Walnut area, contact Vein Care Medical Center at (323) 934-9191 to schedule a consultation. Dr. Landau will evaluate your veins, identify any underlying contributors, and recommend the most effective and lasting treatment approach for your specific situation.
