Spider Veins and Broken Capillaries — Why They Appear and How to Remove Them

Medically reviewed by Dr. Dan Xu, M.D., CCFP — CPSO Licensed Physician and Founder & Medical Director of ID Cosmetic Clinic, Markham. Last updated June 2026.

Almost every week, someone sits in our Markham clinic, points to the side of their nose or the back of a knee, and asks the same thing: “Can you get rid of these little red veins?” The short answer is usually yes — but the right way to remove them depends entirely on what they are and where they sit. This guide walks through the difference between facial broken capillaries and leg spider veins, why they show up in the first place, and the treatments that actually work for each, so you arrive at a consultation already knowing the right questions to ask.

Spider veins vs. broken capillaries: the same problem, two faces

When a patient describes “red veins,” they are usually pointing at one of two related-but-different vascular issues. Telling them apart is the first step toward choosing the right treatment.

Broken capillaries (facial telangiectasia)

Telangiectasia are dilated capillaries less than about 1 mm wide that sit close to the skin surface as fine red or purplish threads or web-like networks. On the face they cluster most often around the sides of the nose, the cheeks and the bridge, and sometimes the chin and jawline. Facial broken capillaries are typically linked to sun damage, rosacea, or simply an inherited tendency toward fragile vessels.

Spider veins (legs)

Spider veins are dilated small veins in the legs, usually 1–3 mm wide, named for the way they radiate out from a central point like a spider’s web. They tend to look blue, purple or red, and although they are still superficial, they sit a little deeper than facial capillaries. They are most common on the inner thigh, behind the knee, and on the calf. For the vast majority of people they are a cosmetic concern and rarely cause functional symptoms.

What they have in common

Different as they look, both broken capillaries and spider veins are fundamentally the same thing: vessels that have dilated permanently and can no longer return to their normal calibre. A healthy capillary or small vein widens when stimulated — heat, blushing, exertion — and then narrows back down. In a “broken” or dilated vessel, the wall structure and elasticity have changed irreversibly. Rest, avoiding triggers, and skincare will not make an established vessel disappear, which is exactly why professional treatment is needed to remove one.

Why do spider veins and broken capillaries appear?

These vessels rarely have a single cause. More often, several factors stack on top of each other over years. Understanding which ones apply to you helps shape both prevention and the treatment plan.

Genetics — the biggest single factor

An inherited predisposition is the strongest risk factor for spider veins. If a parent or sibling has spider veins or varicose veins, your odds of developing them are substantially higher than average, because vessel-wall elasticity, vein-valve function and overall circulatory structure are largely inherited. When both parents have spider veins, a child’s lifetime risk can climb above 90%.

Hormones — why they are more common in women

Spider veins are roughly twice as common in women as in men, largely because of estrogen’s effect on the elastin in vessel walls. Estrogen lowers vessel-wall tension, making veins more likely to dilate under pressure. This is why leg spider veins so often increase during pregnancy: estrogen and progesterone rise sharply while the growing uterus presses on the inferior vena cava and raises pressure in the leg veins — two effects compounding each other. Oral contraceptives and hormone replacement therapy can have a similar influence.

Prolonged standing or sitting

People whose work keeps them on their feet for long stretches (nurses, teachers, retail staff) or seated for hours (office workers) carry persistently elevated pressure in the leg veins. When the vein valves can no longer push back effectively against gravity, blood pools in the lower legs and the vessel walls gradually stretch and lose their elasticity.

UV / sun damage — the accelerator for facial vessels

Ultraviolet radiation is the single most important environmental driver of facial broken capillaries. UV breaks down the collagen and elastin in the dermis — the very scaffolding that supports capillaries and keeps them from dilating. As that support thins, capillaries lose their restraint and begin to dilate permanently under everyday stimulation: temperature swings, eating, emotion. This is why facial telangiectasia is more common in sun-intense climates and among people who work outdoors.

Rosacea

Rosacea is a chronic inflammatory skin condition in which facial broken capillaries are a core feature. In rosacea, the facial vessels over-react to triggers — spicy food, alcohol, heat and cold, emotional flushing — and that repeated, long-term dilation eventually becomes permanent. When telangiectasia comes with rosacea, the plan has to address both the inflammation and the visible vessels, or the redness keeps coming back.

Age

With age, the dermis thins, collagen and elastin decline, and the support structure around capillaries steadily weakens. At the same time the skin’s repair capacity drops, so vessel injuries heal less efficiently. That makes age an independent risk factor in its own right: even without other triggers, visible facial vessels tend to accumulate over the decades.

Treating facial broken capillaries

The principle behind treating facial telangiectasia is selective photothermolysis: a specific wavelength of laser light is absorbed by the haemoglobin inside the abnormal vessel, heats it, and closes it — while the surrounding normal skin is left largely untouched. The closed vessel is then cleared and absorbed by the body over the following weeks. The two most established options are the Vbeam pulsed-dye laser and the Nd:YAG laser.

Vbeam Perfecta (595 nm pulsed-dye laser)

Vbeam Perfecta is one of the gold-standard lasers for facial broken capillaries and spider veins. Its 595 nm wavelength sits in the yellow part of the spectrum, where oxygenated haemoglobin absorbs it very efficiently while the surrounding skin absorbs comparatively little.

During treatment the laser energy is selectively taken up by the haemoglobin inside the vessel and converted to heat, coagulating the vessel wall. The coagulated vessel loses function and is cleared by the immune system over the following weeks to months, and the visible red line gradually fades.

The Vbeam handpiece includes dynamic cooling (DCD), which sprays a burst of coolant a fraction of a second before each pulse to protect the epidermis and reduce discomfort. Most patients describe the sensation as “a rubber band snap,” and treatment usually needs no local anaesthetic.

What to expect: most facial telangiectasia improves significantly after 1–3 sessions. One important point: treatment can cause temporary purpura — a mild bruise-like change that lasts about 1–2 weeks. This is a normal response, not a complication; it indicates the laser energy reached the target vessel. As the purpura fades, the vessel-clearing result becomes visible.

Nd:YAG (1064 nm)

The Nd:YAG laser uses a 1064 nm wavelength that penetrates noticeably deeper than 595 nm, reaching vessels that sit lower in the skin.

Compared with Vbeam, Nd:YAG is slightly less selective for haemoglobin, but its deeper reach is an advantage for larger-calibre, deeper vessels (around 1–3 mm). It also tends to be more comfortable, causes purpura less often, and is generally safer for darker skin tones — melanin competes strongly for the 595 nm wavelength, whereas it absorbs much less of the 1064 nm wavelength.

Best suited to: deeper or darker skin (Fitzpatrick IV–VI), larger facial or leg vessels, and patients who want to minimise visible downtime after treatment.

Treating leg spider veins

Because leg spider veins are deeper and wider than facial capillaries, the treatment choice is different.

Sclerotherapy — the first-line treatment for leg veins

Sclerotherapy is the gold standard for leg spider veins and is recognised worldwide as the most effective approach for small leg vessels. A sclerosing solution (foam or liquid) is injected through a very fine needle directly into the target vein. On contact with the vein wall it triggers a controlled inflammatory reaction that damages and scars the wall, so the vein collapses, closes, and is gradually absorbed by surrounding tissue.

The session: each treatment usually takes 30–60 minutes and several veins can be addressed at once. The injection produces a brief, mild burning sensation. Afterwards, compression stockings are worn for 1–2 weeks to help the vessel compress and close and to reduce side effects such as pigmentation.

The schedule: most patients need 2–4 sessions spaced 4–6 weeks apart for the best result. Treated veins fade over several weeks to months. Results are durable — a properly treated vein typically does not return — but sclerotherapy cannot prevent new spider veins from forming elsewhere.

Nd:YAG laser for leg spider veins

For patients who would rather avoid injections, or whose veins are too fine for a needle to enter accurately, Nd:YAG laser can also treat leg spider veins. It works on the same principle as facial treatment, using heat to close the vessel.

That said, for leg veins, laser is generally a little less effective than sclerotherapy overall and has limited benefit for larger vessels (over about 1.5 mm). It is best reserved for very fine leg spider veins, or as a clean-up step after sclerotherapy.

Which treatment for which vein? A quick comparison

Sessions are typical ranges, not guarantees; your plan depends on vessel size, depth, skin type and how your skin responds. Pricing is quoted per area at consultation (from Quoted at consultation). This article is general information, not medical advice.

Realistic expectations: what treatment can and cannot do

Vascular treatment is genuinely effective, but it helps to be clear-eyed about what it delivers. It can remove the vessels you have today, often dramatically, and the cleared vessels do not “grow back.” What it cannot do is stop new vessels from forming — especially if you have a strong genetic tendency or ongoing triggers like sun exposure and rosacea. Think of it as clearing a garden rather than paving it: the area you treat stays clear, but new growth can appear elsewhere over time, which is why most people benefit from occasional maintenance and good prevention habits. Improvement is also gradual: vessels fade over weeks to months as your body clears them, not overnight.

How to slow new spider veins from appearing

Nothing fully prevents spider veins, particularly in people with an inherited tendency. But the following measures genuinely slow how fast new vessels appear and help your treatment results last longer.

Strict sun protection (the key for facial capillaries)

Sun exposure is the most controllable risk factor for facial broken capillaries. Daily broad-spectrum SPF 30+ sunscreen, layered with physical protection (a wide-brim hat, sun-protective clothing) when UV is strong, is the most effective way to slow facial vessel damage. Sun protection both reduces new vessels and helps protect already-treated areas, extending your result.

Compression stockings (day-to-day for legs)

For people at higher risk of leg spider veins — those who stand for long hours, have a family history, or are pregnant — wearing medical compression stockings (15–20 mmHg or 20–30 mmHg) lowers leg-vein pressure and slows the rate at which spider veins form. Compression is also an important aftercare step that protects sclerotherapy results.

Lifestyle adjustments

• Don’t hold one position for too long: whether standing or sitting, move your legs every 30–60 minutes to keep circulation going.
• Elevate your legs: when resting, raise the legs toward heart level to reduce leg-vein pressure.
• Limit excessive facial heat: frequent hot steaming, saunas, or long spells in very hot environments repeatedly provoke facial capillaries.
• Watch alcohol and spicy food: for people with rosacea, these are major triggers of repeated capillary flushing.
• Maintain a healthy weight: excess weight adds load to the leg veins.

Periodic maintenance treatment

In patients with a clear genetic predisposition, new spider veins can still form slowly in new locations after treatment. A maintenance session every 1–3 years to clear newly appeared vessels keeps the skin looking its best and avoids letting vessels accumulate to a more severe stage before they are addressed.

Who should be cautious — and when to see a doctor first

Most people are good candidates for vascular treatment, but a proper consultation screens for situations that need care or a different approach. Tell your physician if you are pregnant or breastfeeding (most elective vein treatment is postponed), are prone to keloid scarring or pigmentation, have a history of blood clots or a clotting disorder, take photosensitising medication, have a recent tan or active skin infection at the site, or have a known allergy to a sclerosing agent. People with a personal or family history of deep-vein thrombosis should be assessed before sclerotherapy.

Importantly, if your leg veins are accompanied by bulging, ropey varicose veins, leg heaviness, swelling or aching, you may have underlying venous reflux that should be evaluated before any cosmetic treatment of the surface veins — treating the surface without addressing the source can lead to disappointing or short-lived results. This article is general information, not medical advice; your treatment plan should be set in a one-on-one consultation.

Related at ID Cosmetic Clinic

• Treatment: Vbeam vascular laser
• Treatment: Sclerotherapy for leg veins
• Treatment: Laser vein & redness removal
• Condition: Facial redness & rosacea
• Condition: Spider veins
• Read next: The complete guide to rosacea and facial redness
• Read next: IPL vs. laser for facial redness