There is a wide range of traffic branches between the portal vein and the body vein. In cirrhosis with portal hypertension, in order to return the stagnant blood in the portal vein system, a large number of these traffic branches are opened and the dilated or varicose veins anastomose with the veins of the body circulation to establish the collateral circulation, so that the portal blood can be returned to the right heart instead of going through the liver. How to prevent the formation of portal collateral circulation? 1.Keep away from excessive salt consumption The function of liver destroying antidiuretics is weakened in patients with liver cirrhosis, so the urine output is reduced, so that salt is retained in the body, coupled with plasma protein reduction and edema or ascites occurs. Therefore, patients with cirrhosis should strictly control the intake of salt. Cirrhosis without edema or edema mild, daily salt shall not exceed 5 grams; edema serious, salt intake shall not exceed 1 gram. 2, avoid eating too hard food due to cirrhosis, portal hypertension caused by the lower esophagus and fundus of the stomach blood vessels become thick, thin wall. If rough food is swallowed into the stomach without chewing and swallowing slowly, it may puncture or rub through the blood vessels and cause hemorrhage. Upper gastrointestinal bleeding is a common complication and one of the causes of death in patients with cirrhosis, and should not be taken seriously. 3, avoid indiscriminate use of drugs due to cirrhosis, liver function is reduced, the detoxification process of drugs in the liver is greatly slowed down, drugs can be accumulated in the body, especially anesthetics and sedatives not only have a direct toxic effect on the liver, but also will induce hepatic coma. Therefore, it is necessary to use as few medicines as possible, and the medicines used must be used only when it is necessary to use them. 4, careful sex life Cirrhosis patients do not control sex life, can induce hepatic coma and upper gastrointestinal bleeding. The number of sexual life of patients with compensated cirrhosis should be reduced to a considerable extent, and should be prohibited in the decompensated period. 5, avoid exertion Chinese medicine believes that people move blood meridians, people lying blood to the liver and spleen. This can indicate that patients with cirrhosis should rest more. Bed rest, can reduce the need for liver metabolism, increase the blood supply to the liver, is conducive to the nutrition and regeneration of liver cells, promote the stabilization of the condition. If not only do not rest, and overwork, the opposite is true, the liver cells will again necrosis, thus aggravating the condition. 6, avoid emotional pessimism too much depression and chagrin will lead to human immune dysfunction, aggravate the development of the disease. Cirrhosis patients should be like those who overcome advanced cancer with spiritual power for 20 years and still live in the world healthily, and firmly believe that their own organism can overcome the disease.