Ascites examination

Human serosal cavity such as pleural cavity, peritoneal cavity, pericardial cavity, etc., under normal circumstances, there is only a small amount of liquid, which acts as a lubricant in the cavity and can rarely be extracted. However, in pathological conditions, a large amount of liquid is retained, forming a effusion. According to the causes and characteristics of effusion, serous membrane effusion can be divided into two major categories: leakage and exudate.