Background: Varicose veins are most common in the superficial veins of the legs, which are subject to high pressure when standing. Endovenous laser therapy (EVLT) is a popular surgical treatment for varicose veins. Objective: The aim of the present study was to assess the higher energy endovenous laser occlusion rate in treatment of varicose veins. Patients and methods: This clinical trial study included 18 patients with lower limb varicose veins presented to the outpatient clinic of the Zagazig University Hospital. All patients were assessed clinically to identify symptoms and signs related to venous diseases and duplex ultrasonography was performed. Patients were instructed to remove all dressings after one week, to shower and then to apply class II full length compression hosiery for 3 months. Results: the mean age of patient's was 35.58±5.93 and BMI ranged from 18.5 to 32, with a mean of 26.11 ± 2.84. 27.7% have family history in the first degree relative. The operative time ranged from 35 minutes to 70 minutes, with a mean of 55 minutes. Regarding hospital stay, all patients undergoing GSV were discharged at the same day of the intervention. Conclusion: Endovenous laser treatment of varicose veins in the great saphenous vein with the 1470 nm diode laser is safe and highly effective. Our study suggests that improved outcomes are associated with higher energy EVLA of varicose veins, 95% of cases were successfully treated.