Protruding leg blood vessels are mainly caused by varicose veins in the lower limbs, which is due to special groups of people, such as those who stand or sit for a long time, perform heavy physical labor for a long time or are obese or pregnant. The blood vessels of these patients are thinner, the elasticity of the blood vessels is reduced, and the regurgitation of blood occurs due to valve insufficiency. After the regurgitation of blood, due to prolonged standing or heavy physical labor, it will accumulate in the lower leg, causing the venous pressure of the lower leg to rise, and the blood vessels of the lower leg will become tortuous and dilated. With the development of the disease, the tortuous and dilated blood vessels will extend to the inner thighs and the varicose veins will become obvious. When varicose veins appear in the lower extremities, the swelling of the lower extremities can be improved by elevating the affected limbs to promote venous reflux, wearing varicose socks or taking oral horse chestnut seed extract or calcium hydroxybenzene sulfonate capsules to promote venous reflux in order to delay the effect of the disease. If the disease is more serious, it is recommended to choose the appropriate technique for surgical treatment under the guidance of a specialist.