How many cancer patients are there in China?

By the end of 20 19, there were about 3.8 million new cancer cases and 2.29 million deaths each year, and the overall cancer incidence rate increased by about 3.9% every year, and the incidence and mortality rate showed an upward trend year by year. Cancer has become one of the four chronic diseases in China, which seriously affects the health of our people.

"The main cancers in China include lung cancer, breast cancer, colorectal cancer, gastric cancer, liver cancer, esophageal cancer, cervical cancer and prostate cancer. The incidence of the first six cancers accounts for about 70% of all tumors, and the death rate is close to 80%. " Zhang Kai said that people over 50 years old are the key targets of most malignant tumors, and these major cancers should be screened regularly to improve the rate of early diagnosis and treatment.

Extended data:

External causes of cancer:

1, living habits? Bad living habits such as smoking are closely related to the occurrence of cancer. About13 patients who died of cancer were related to smoking, which was the main risk factor of lung cancer.

Ingesting a lot of alcoholic beverages can lead to malignant tumors in the mouth, throat and esophagus. High-energy and high-fat foods will increase the incidence of breast cancer, endometrial cancer, prostate cancer and colon cancer. Drinking polluted water and eating moldy food can induce liver cancer, esophageal cancer and gastric cancer.

2. Environmental pollution and occupation? The pollution of air, drinking water and food will cause serious harm to human beings. The environmental carcinogens announced by the World Health Organization include arsenic, asbestos, benzidine, 4-aminobiphenyl, chromium, diethylstilbestrol, radioactive radon gas, coal tar, mineral oil and conjugated estrogen.

3. Natural and biological factors? Natural factors can also cause cancer, for example, ultraviolet rays can cause skin cancer under certain conditions. The biological factors are mainly viruses, of which 1/3 is DNA virus and 2/3 is RNA virus. DNA viruses such as EB virus are related to nasopharyngeal carcinoma and Burkitt lymphoma, human papillomavirus infection is related to cervical cancer, and hepatitis B virus is related to liver cancer.

RNA viruses such as T-cell leukemia/lymphoma virus are related to T-cell leukemia/lymphoma. In addition, bacteria, parasites and fungi can cause cancer under certain conditions. For example, Helicobacter pylori infection is related to the occurrence of gastric cancer, schistosomiasis in Egypt has been proved to induce bladder cancer, and Aspergillus flavus and its toxins can lead to liver cancer.

People's Daily Online-There are 3.8 million new cancer cases every year. What else can we do to prevent and control cancer?