Sclerotherapy

Assessment and Treatment of Thread Veins

Thread veins, sometimes called spider veins or telangiectasia, are small visible blood vessels that can appear as fine red, purple or blue lines beneath the skin. They are particularly common on the legs and are usually harmless, although some people seek treatment because they dislike their appearance.

YT Medical provides consultation and assessment for selected thread veins, with sclerotherapy considered where it is clinically appropriate. Treatment should begin by establishing what type of vein is present, because small superficial thread veins are different from larger varicose veins and may require a different assessment or treatment pathway.

How Does Sclerotherapy Work?

Sclerotherapy involves introducing a specialist sclerosant into a selected vein using a fine needle. The treatment causes a controlled reaction within the vessel wall, encouraging the vein to close. Blood is then redirected through other functioning vessels and the treated vein can gradually become less visible as the body responds over the following weeks.

Depending on the veins being treated and the product required, more than one treatment session may be necessary. Improvement develops progressively, and complete disappearance of every visible vein cannot be guaranteed.

Where the treatment requires a prescription-only sclerosant, it is considered only following the appropriate clinical assessment and prescribing process.

Thread Veins and Varicose Veins Are Different

Small thread or spider veins usually sit close to the skin and may be principally a cosmetic concern. Varicose veins are larger superficial veins that have become enlarged and tortuous, often because the valves responsible for directing blood back towards the heart are not functioning normally.

Prominent varicose veins, leg swelling, skin changes, recurrent inflammation or other symptoms may indicate underlying venous disease requiring vascular assessment rather than cosmetic treatment alone. Where there are signs that further investigation is appropriate, YT Medical will recommend the relevant medical pathway before elective treatment is considered.

What Happens During Treatment?

Where sclerotherapy is suitable, small quantities of the selected solution are injected into the targeted vessels. Several veins may be treated during the same appointment depending on the area and clinical plan.

Temporary stinging, redness, swelling and bruising can occur around injection sites. Treated vessels can initially appear darker or more noticeable before gradually fading, and areas of brown pigmentation may occasionally persist for longer. Other possible complications include small areas of inflammation, matting of very fine new vessels, ulceration and, rarely, more significant vascular complications.

Compression hosiery or other aftercare may be recommended depending on the treatment performed.

Results and Follow-Up

Sclerotherapy can substantially reduce the visibility of suitable thread veins, but it cannot prevent new vessels developing elsewhere in the future. Genetics, hormonal factors, pregnancy, age and underlying venous function can all influence the formation of visible leg veins.

Follow-up allows the response to be assessed before deciding whether additional treatment is required.