Number of cases rising on the Chinese mainland

The incidence of breast cancer has been rising constantly on the Chinese mainland in recent years, according to recent data.

That's largely as a result of factors such as late marriage or child bearing, heavy workloads, smoking and sedentary lifestyles, said Chen Wanqing, director of the Chinese National Central Cancer Registry at the National Health and Family Planning Commission.

Breast cancer is the most prevalent type of cancer among women on the mainland, accounting for about 15 percent of all new cases of cancer every year, according to the latest data published by the registry.