Varicose veins affect a majority of adult patients and cause a decreased quality of life. In recent years, standard practice has been to perform thermoablation and local phlebectomies in the same procedure. There is conflicting data on the long-term outcome of the local varicose veins; there seems to be a need for more re-interventions if the local varicosities are not treated immediately. On the other hand, the prolonged combined procedure increases procedural pain and bleeding, as well as the risk for complications from deep vein thrombosis/pulmonary embolism.

This trial aims to evaluate the need for immediate treatment of local varicosities and the potential sufficiency of main trunk treatment.

Inclusion Criteria:

• Ultrasound verified insufficiency of great saphenous vein (GSV)
• GSV diameter 5-10 mm
• C2-C4 varicosities
• Most proximal insufficient branch in the distal thigh
• Written and signed informed consent

Exclusion Criteria:

• Peripheral arterial disease
• Body mass index >40
• Lymphoedema
• Known allergy to sclerosant
• Any known coagulopathy or history of deep vein thrombosis
• Severe illness
• Pregnancy