Death toll of cancer in China is 20 17.

According to the investigation and analysis of national cancer prevention and treatment research, during the 20 years from 1970s to 1990s, the cancer mortality rate in China increased by 9.95%, including male 10.98% and female 6.32%. In 20 17 years, there were14.09 million new cancer cases and10.09 million cancer deaths.

Malignant tumor is what people call cancer, which is the general name of 100 related diseases. When the cells in the body mutate, they will continue to divide and get out of the control of the body, eventually forming cancer. All organs of the human body are made up of cells. Cell growth and differentiation can meet the needs of the body, and this orderly process can keep people healthy. However, if cells continue to divide, these extra cells will form tumors. Malignant tumor cells can invade and destroy adjacent tissues and organs.