Breast cancer needs to be typed according to different types to decide which one is the most serious, if it is typed according to pathological histomorphology, the most serious one is inflammatory breast cancer, and if it is typed according to molecular typing of breast cancer among which triple-negative breast cancer is the most serious. 1. Inflammatory breast cancer: patients will have symptoms such as breast fever, redness, skin lymphatic vessels involvement, etc. Moreover, it will invade capillaries and cause cancer metastasis in multiple organs. It is characterized by rapid development, poor surgical treatment effect, and is usually treated with radiotherapy, with poor prognosis and high malignancy. 2. Triple-negative breast cancer: Triple-negative breast cancer has high proliferative activity of cancer cells and strong invasiveness, which is prone to proliferation, metastasis and recurrence. The means of treatment is relatively limited, and radiotherapy and chemotherapy are used to control it after surgical resection. Breast cancer is closely related to female estrogen, and an increase in estrogen can cause breast cancer. It is also closely related to family history, life stress, and quick temper and irritability. Women are advised to have regular medical checkups and early treatment after detection.