Thread veins (also called spider veins) are a cosmetic problem. They are very common and are often associated with underlying varicose veins that are not always visible. When considering treatments, it is important to perform a full clinical assessment including an ultrasound scan of the main leg veins, to exclude underlying varicose veins.
The mainstay of treatment for isolated thread veins is micro-sclerotherapy (injection of chemicals designed to close the veins, using very small needles). This can be performed in a clinic setting without the need for any surgery or anaesthetic. The most important risk to be aware of is the chance of pigmentation or darkening of the skin at the site of the veins which can, on occasions, be permanent. This will be discussed with you in detail at your consultation.