Cirrhosis can cause leg swelling, which may be caused by hypoproteinemia and decreased aldosterone inactivation due to decreased liver function. If you have cirrhosis, decreased liver function leads to decreased protein synthesis by the liver, causing hypoproteinemia. At this time, the colloid osmotic pressure in the blood vessels decreases, and the fluid in the blood vessels flows through the blood vessels into the tissues, leading to swelling. At the same time, the liver is the main site of aldosterone and antidiuretic hormone metabolism in the body, and impaired liver function reduces the inactivation of these hormones, which play a role in water and sodium retention, increasing blood volume and further exacerbating body swelling. Therefore, in cirrhosis loss of compensation period, it will be more prone to body edema, should promptly consult a doctor, improve the examination, clarify the cause of the disease under the guidance of the doctor standardized treatment.