Body
Sclerotherapy (Spider Veins): what it is, what to expect and where to find it
What is Sclerotherapy (Spider Veins)?
Sclerotherapy is a medical procedure used to treat spider veins and small varicose veins. A provider injects a solution into the affected vessels so that they close and are gradually absorbed, which reduces how visible they look.
How Sclerotherapy (Spider Veins) works
A fine needle delivers a medicine called a sclerosant into the vein. The solution irritates the inside of the vessel wall so it collapses and seals. Over the following weeks the body absorbs the treated vein and it fades from view. Larger or deeper veins may need a different approach, and a provider will check whether sclerotherapy suits the veins you want treated.
What to expect at the appointment
- A consultation with a review of your medical history, medicines and the veins to be treated.
- Cleansing of the skin, then a series of tiny injections along the affected veins.
- Compression stockings or wraps applied afterwards if advised.
- Instructions on walking, exercise and sun avoidance in the following days.
Recovery and downtime
Most people walk straight afterwards and return to routine activities, though strenuous exercise is usually paused for a short time. Bruising, mild cramping or small raised areas near the injections are common. Compression is often advised for a period.
Safety and suitability
- Pregnancy, a history of blood clots, and some medical conditions can make it unsuitable, so a full history matters.
- Possible effects include bruising, skin staining, small sores and, rarely, more serious complications that the provider should explain.
- Several sessions are commonly needed, and results appear gradually over weeks.
- New veins can appear over time, so treatment is not a one-time fix for everyone.
Questions to ask before you book
- Who performs the injections, and what is their medical training?
- Will I need an ultrasound or vein assessment first?
- How many sessions do you expect, and how long should I wear compression?
- What warning signs mean I should contact you straight away?
Sclerotherapy (Spider Veins) FAQ
Is sclerotherapy only cosmetic?
It is often chosen for appearance, but vein problems can also cause aching or swelling. A medical provider can tell you whether your veins need assessment beyond how they look.
Does sclerotherapy hurt?
People usually describe brief stinging or cramping at the injection points, which the very fine needles keep small. Tell the provider if anything feels more than mild.
When will I see the veins fade?
Treated veins usually fade gradually over a few weeks, and some take longer. Your provider can say what to expect for your veins and when to review them.
Can I exercise after sclerotherapy?
Gentle walking is normally encouraged, while hard exercise is often paused for a short period. Follow the specific advice you are given.
This is general information, not medical advice, and results differ from person to person. This treatment should be prescribed or performed by, or under the supervision of, a licensed medical provider. Talk to a licensed provider about your health history before booking.
Written and fact-checked against our editorial rules (no prices, statistics or promised results) by the MedSpa Listings editorial team. Last reviewed 2026-11-10.
Where to find Sclerotherapy (Spider Veins)
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