面静脉有无瓣膜，众说纷坛。为验证有关面静脉无瓣膜，面静脉的血液可经内眦静脉，眼静脉逆流至海绵窦引起颅内感染的理论。本文在双目镜下解剖成人４８条面静脉，２４例有瓣膜，占５０％。其中静脉瓣位于口角平面以上者８例，占３３．３％，在此８例中，瓣膜位置在面深静脉汇 Whether the veins with or without the valve, the public are numerous forums. In order to verify the theory that there is no valve or veins in the dorsal vein and the blood in the dural veins can cause intracranial infection through the infrarenal veins and venous veins to the cavernous sinus. This article anatomizes 48 adult dorsal veins in the binocular, 24 patients have a valve, accounting for 50%. Among them, 8 cases (33.3%) had venous flap located above the plane of mouth angle. In 8 cases, the valve position was in deep facial venous exchange