Although mid- to late-stage breast cancer may not be curable, some patients can survive for a long time, and a small number of patients with mid- to late-stage breast cancer can survive for 10-15 years or even 20 years. The length of time a patient can live with advanced breast cancer is determined by a combination of factors rather than a single situation. Each patient is judged based on the specific type of pathology, whether there are distant metastases and physical condition, as well as sensitivity to treatment. For example, if there are only bone metastases but no visceral metastases, the disease progresses more slowly and the survival time may be longer. If the molecular typing is LuminalA type, it is more sensitive to endocrine therapy itself, and it is possible to survive for several years or even a dozen years even in advanced stage through comprehensive treatment. If it is a worse case, like what I just said, there are already multiple visceral metastases, and there are extensive metastases to important organs such as liver and brain, and it is not sensitive to endocrine chemotherapy, the survival time may be only a few months or less than a year. Therefore, the specific situation is very different and must be judged in a comprehensive manner. It should be noted that no matter what the situation is, a good state of mind is needed, and a good state of mind itself is a very important factor that can inhibit the growth of breast cancer cells.