[Guidelines for clinical diagnosis and treatment of advanced triple negative breast cancer in China（2024 edition）].

Breast cancer ranks as the most common female malignancy worldwide. Data from GLOBOCAN 2020 showed that breast cancer surpassed lung cancer and become the leading malignancy globally which was a serious threat to women's health. Different from Caucasian, there is a lower prevalence of breast cancer in Chinese women. But the age-standardized incidence rate of breast cancer in China has reached to 39.1 per 100,000 in 2020, with 416,000 new cases, accounting for 18.4% of global breast cancer burden, due to multiple factors such as lifestyle and dietary habits changes in recent years