腹水是一常见征候,引起腹水的机制甚复杂,但主要有腹腔毛细血管渗透性增加(如腹腔炎症病变和肿瘤),血浆胶体渗透压降低(各种原因所致的低蛋白血症),门静脉高压、肝静脉或腔静脉堵塞,毛细静脉压升高,以及淋巴管堵塞和内脏破裂等。引起腹水的病因很多,有时要通过腹水检查去找寻病因,因而腹水检查常为临床医师鉴别诊断 Ascites is a common sign and the mechanisms that cause ascites are complicated, but mainly include increased peritoneal capillary permeability (such as peritoneal inflammatory lesions and tumors), decreased plasma colloid osmotic pressure (hypoalbuminemia due to various causes), portal vein High pressure, hepatic vein or vena cava blockage, elevated capillary pressure, and lymphatic blockage and visceral rupture. Caused by a lot of causes of ascites, and sometimes through the ascites check to find the cause, so ascites check often clinicians differential diagnosis