What are spider veins?
Telangiectasias are thin, red-purple, web-like veins in the skin. Slightly larger, blue-green veins are called reticular veins. They are most common on the legs and face.
Spider veins are usually noticed for cosmetic reasons, but in some people they can be a sign of underlying venous insufficiency.
Symptoms
- Thin, red-purple, web-like veins in the skin
- Blue-green reticular veins
- Burning, itching or heaviness in some people
Causes and risk factors
- Family predisposition
- Hormonal changes and pregnancy
- Standing for long periods
- Underlying venous insufficiency
- Sun exposure (for facial veins)
How is it diagnosed?
The examination assesses where the veins are and how widespread they are. Colour Doppler ultrasound may be advised to rule out underlying venous insufficiency; if present, it is treated first.
Treatment approach
Sclerotherapy (injecting medication into the vein) and surface laser methods can be used. The suitable method depends on vein size, colour and skin type; several sessions may be needed.
When to see a doctor
If spider veins come with leg heaviness, swelling or pain, an assessment for an underlying vein problem is advised.
Related treatments
Frequently asked questions
Are spider veins a health problem?
They are mostly a cosmetic concern, but when they come with symptoms they may indicate underlying venous insufficiency.
Does one session clear them?
Several sessions may be needed depending on how widespread the veins are; the number is planned at the examination.
Will new ones appear after treatment?
New spider veins may form over time in other places; the predisposition remains.



