Visible thigh veins are caused by dilated veins in the thigh area, which is a clinical manifestation of varicose veins of the saphenous vein. The reason for this is that the blood from the deep veins repeatedly enters the superficial veins, and the blood from the superficial veins is not able to flow back into the deep veins, so the pressure in the superficial veins increases, and the high pressure in the veins leads to the dilatation of the blood vessels, which results in the appearance of the visible thigh veins. Conservative treatment is necessary to slow down the progression of the disease. Surgery is the only way to make the bruises disappear completely. Surgery is currently available in a variety of ways, including sclerosing agent injection, shunt surgery, and laser radiofrequency, all of which are minimally invasive surgical procedures, but need to be based on the patient’s specific condition to choose the appropriate treatment program.