下肢静脉曲张是农村的一种常见病。社员们通常称它为“筋疙瘩”,就是在腿上长起曲曲弯弯的象蚯蚓一样的东西。为什么腿上会长这些东西呢?归纳起来有三种原因:一是劳累过度。有的人在干活时长期站立或挑的东西过重,引起静脉回流障碍,血液在血管中不能通畅地流过,就会使血管扩大、延长或弯曲造成曲 Varicose veins are a common disease in rural areas. Members commonly refer to it as “bumps,” something that resembles earthworms, with curled twists and turns on their legs. Why do these things on the president of the leg? To sum up for three reasons: First, overwork. Some people standing or pick up long-term things overweight, causing venous return disorders, the blood can not flow smoothly in the blood vessels, it will make the blood vessels expand, extend or bend caused by the song