What are the causes of liver cancer? Experts explain the reasons for the high incidence of liver cancer

Cancer cases are increasing every year. People with cancer are already desperate for life. Is liver cancer an infectious disease? Can it be transmitted from person to person? Today, let's take a look at how experts know the high incidence of liver cancer.

Is liver cancer contagious?

In fact, we don't need to worry. Liver cancer is not contagious. However, people over 40 years old with a history of hepatitis for more than 5 years or positive hepatitis B virus antigen markers, people with a history of alcoholism for more than 5 to 8 years and clinical manifestations of chronic liver disease, and patients with confirmed liver cirrhosis are two high-risk groups for liver cancer. We should remind everyone that the occurrence of liver cancer is closely related to infectious diseases such as hepatitis B and hepatitis C. Therefore, strengthening the prevention and treatment of various types of hepatitis will undoubtedly play an effective role in curbing the occurrence of liver cancer.

Friends who belong to these two groups should have their serum alpha-fetoprotein (AFp) tested every six months; when AFp is found to be elevated but below 200 micrograms/liter, it should be frequently rechecked and dynamically observed until it is excluded or diagnosed. If the patient's AFp continues to rise, B-ultrasound and CT tests cannot support the diagnosis, and further hepatic artery angiography should be performed. The B-ultrasound that everyone is very familiar with can make up for the error of alpha-fetoprotein testing. It is best for patients to check B-ultrasound and alpha-fetoprotein simultaneously. Professor Jin Rui said that alpha-fetoprotein testing is an ideal and simple method for screening small liver cancer, and B-ultrasound examination is an important imaging diagnostic method for detecting small liver cancer.

As we all know, liver cancer is called "the king of cancers", so early detection is very important. Especially the early detection of small liver cancer can save a life. So what is a small liver? Small liver cancer refers to liver cancer with a maximum diameter of a single cancer nodule of no more than 3 cm or a sum of the diameters of two cancer nodules of no more than 3 cm.

Experts explain the high incidence of liver cancer

Studies have shown that hepatitis virus infection has a synergistic carcinogenic effect with aflatoxin, drinking water pollution, alcoholism, smoking, nitrosamines, oral contraceptives, trace element imbalance, genetics and other factors. Liver cancer cells not only occur in the liver, but also metastasize to other parts and form new tumors. Due to the combined influence of the above factors, liver cells in the human body may lose normal regulation and grow excessively and infinitely, eventually forming a tumor in the liver that can invade and destroy normal tissues and organs. This is liver cancer.

At present, it has been noticed clinically that patients with liver cancer often have a history of acute hepatitis → chronic hepatitis → cirrhosis. From a pathological point of view, among patients with primary hepatocellular carcinoma, about 50-80% of cases are accompanied by cirrhosis: and among patients with bile duct epithelial cell carcinoma of primary liver cancer, 18.2~50% of cases are accompanied by cirrhosis. This figure shows the close relationship between the two diseases. Liver cancer may be the result of excessive regeneration of liver cells caused by cirrhosis. In addition, through the determination of hepatitis B surface antigen (HBsAg) in liver cancer patients, it was found that the positive rate of HBsAg in liver cancer patients was as high as 81.82%. This result seems to indicate that hepatitis B has been suffered from before, but the relationship between the two needs further study. But one thing is certain, preventing viral hepatitis and cirrhosis is very important to reduce the occurrence of liver cancer.

Summary: The above is very important to reduce the occurrence of liver cancer. You need to know more about it. It will help you understand some liver cancer knowledge and avoid misunderstandings.