Perthes test and Trendelenburg test might be help to identify the patency of blood reflux in deep vein and valvular function in perforator, respectively.

• 皮温变化，曲张静脉部位及周围是否皮温增高或扪及震颤，下肢感觉、运动及动脉搏动情况，并与对侧肢体作比较。