Venous aneurysms are rare lesions and of little significance in every day clinical practice. While in many cases asymptomatic they can be the cause of great morbidity due to thrombosis and subsequent possibility of pulmonary embolism. Venous aneurysms are classified in deep and superficial according to affected vein. The diagnosis is based mainly on Doppler ultrasound, while computed tomography, magnetic resonance imaging and venography provide more details. Treatment of venous aneurysms should be surgical. We present a case of a double aneurysm of the lesser saphenous vein which according to our knowledge is the first case reported in literature.