The disease is usually found in women after 40 years of age. The main manifestations are painless breast lumps (unclear boundary, hard texture, poor mobility, no obvious pressure pain), blood overflowing from nipples, and often accompanied by enlarged axillary lymph nodes. Treatment: surgery, chemotherapy, radiotherapy, endocrine therapy, molecular targeted therapy and other comprehensive treatments How to detect and treat breast cancer early: raise awareness of breast health; go to breast specialist for regular checkups, because breast cancer is usually painless unless it is in advanced stage. Special emphasis: breast cancer ranks first among all malignant tumors of women in China and has the best effect among all solid malignant tumors. The 5-year survival rate of early breast cancer can reach over 90%, and even some patients do not affect their normal life expectancy. Getting cancer is unfortunate, but getting breast cancer is the most fortunate of all!